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Dell™ OptiPlex™ 740 User's Guide
 
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 Mini Tower Computer
 Desktop Computer
 Small Form Factor Computer

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Summary of Contents for Dell Optiflex 740

  • Page 1 Dell™ OptiPlex™ 740 User's Guide    Mini Tower Computer  Desktop Computer  Small Form Factor Computer Back to Contents Page...
  • Page 2: Advanced Features

    The system battery has reached a voltage of 2.2 V or lower. Battery Low For more information about Dell's ASF implementation, see the ASF User's Guide and the ASF Administrator's Guide, which are available on the Dell Support website at support.dell.com.
  • Page 3: Password Protection

    A managed system is one that has Dell OpenManage Client Instrumentation set up on a network that uses IT Assistant. For information about Dell OpenManage Client Instrumentation, see the Dell OpenManage Client Instrumentation User's Guide available on the Dell Support website at support.dell.com.
  • Page 4: Option Settings

    NOTICE: If you leave your computer running and unattended without having a system password assigned, or if you leave your computer unlocked so that someone can disable the password by changing a jumper setting, anyone can access the data stored on your hard drive.  ...
  • Page 5: Administrator Password

    Deleting or Changing an Existing System Password   1. Enter system setup (see Entering System Setup).   2. Highlight System Password and press <Enter>.   3. When prompted, type the system password.   4. Press <Enter> twice to clear the existing system password. The setting changes to Not Set. If Not Set is displayed, the system password is deleted.
  • Page 6: Disabling A Forgotten Password And Setting A New Password

    To secure your TPM data and encryption keys, follow the backup procedures documented in the Archive and Restore section of the EMBASSY Security Center help file. In the event of these backups being incomplete, lost, or damaged, Dell will be unable to assist in the recovery of encrypted data.
  • Page 7: Entering System Setup

    Entering System Setup   1. Turn on (or restart) your computer.   2. When the blue DELL™ logo is displayed, you must watch for the F2 prompt to appear.    3. Once this F2 prompt appears, press <F2> immediately. NOTE: The F2 prompt indicates that the keyboard has initialized. This prompt can appear very quickly, so you must watch for it to display, and then press <F2>.
  • Page 8   (Internal default) NOTE: If USB is selected, ensure that USB Controller setup option under Onboard Devices is set to On. Identifies and enables and disables the drives attached to the SATA connectors on the system board and SATA 0 through lists the capacities for the hard drives.
  • Page 9 selection only matters if there are two video controllers present. When Auto is selected, the add-in video controller will be used. Video   (Auto default) NOTE: A PCI Express graphics card will override the integrated video controller. This setting configures the amount of system memory that is reserved for the integrated video controller. The settings are Auto, 16MB, 32MB, Video Memory 64MB, 128MB, or Off.
  • Page 10: Changing Boot Sequence For The Current Boot

    decrease the numbers, or type numbers in both the date and time fields. When Low Power Mode is selected, remote wakeup events will no longer power up the computer from Hibernate or Off via the onboard Low Power network controller. Mode default) This option allows the system to power up when a Network Interface Controller or Remote Wakeup-capable modem receives a wake up signal.
  • Page 11: Booting To A Usb Device

    NOTE: To boot to a USB device, the device must be bootable. To ensure that a device is bootable, check the device documentation.   Changing Boot Sequence for Future Boots   1. Enter system setup (see Entering System Setup).   2.
  • Page 12: Clearing Forgotten Passwords

          Jumper Setting Description PSWD Password features are enabled (default setting). Password features are disabled.    jumpered    unjumpered  Clearing Forgotten Passwords   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. NOTICE: This process erases both the system and administrator passwords.
  • Page 13: Clearing Cmos Settings

      15. Connect your computer and devices to electrical outlets, and turn them on. NOTE: This procedure enables the password feature. When you enter system setup, both system and administrator password options appear as Not Set—meaning that the password feature is enabled but no password is assigned (see Entering System Setup).
  • Page 14: About Raid Configurations

    This section provides an overview of the RAID configuration that you may have selected when you purchased your computer. A number of RAID configurations are available in the computer industry for different types of uses. The Dell mini tower and desktop models of your OptiPlex computer support RAID level 0 and RAID level 1.
  • Page 15 NOTE: In a RAID level 0 configuration, the size of the configuration is equal to the size of the smallest drive multiplied by the number of drives in the configuration.   RAID Level 1 Configuration RAID level 1 uses a data-redundancy storage technique known as mirroring to enhance data integrity. When data is written to the primary drive, the data is also duplicated, or mirrored, on the second drive in the configuration.
  • Page 16: Using Nvidia Mediashield

      3. Press <Ctrl><n> when prompted to enter the RAID BIOS. NOTE: If the operating system logo appears, continue to wait until you see the Microsoft Windows desktop; then shut down your computer and try again. The Define a New Array window appears.  ...
  • Page 17   5. Click Custom, then click Next.   6. Use the drop-down box to select Striping (RAID 0) or Mirroring (RAID 1).   7. Click Next. The Free Disk Selection window appears. NOTE: Only RAID-enabled hard drives are listed as free disks.  ...
  • Page 18: Rebuilding A Raid Configuration

    The NVIDIA Convert Array Wizard appears.   4. Click Next.   5. Under RAID Mode Selection, select Mirroring or Striping from the drop-down menu.   6. Click Next. NOTICE: You will lose all data on the selected drives in the next step.  ...
  • Page 19: Replacing The Battery

    Back to Contents Page   Battery Dell™ OptiPlex™ 740 Systems User's Guide   Replacing the Battery  Replacing the Battery   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components.
  • Page 20 system battery positive side of battery connector battery socket battery socket tab         NOTICE: To avoid damage to the battery connector, you must firmly support the connector while replacing the battery.   6. Install the new system battery. a.
  • Page 21: Before You Begin

    Hold a component such as a processor by its edges, not by its pins. NOTICE: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell is not covered by your warranty.
  • Page 22 NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.   2. Disconnect any telephone or telecommunication lines from the computer.   3. Disconnect your computer and all attached devices from their electrical outlets, and then press the power button to ground the system board.  ...
  • Page 23: Cleaning Your Computer

    Back to Contents Page   Cleaning Your Computer Dell™ Optiplex™ 740 Systems User's Guide   Computer, Keyboard, and Monitor   Mouse   Floppy Drive   CDs and DVDs   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
  • Page 24: Cds And Dvds

    Clean your floppy drive using a commercially available cleaning kit. These kits contain pretreated floppy disks to remove contaminants that accumulate during normal operation.  CDs and DVDs NOTICE: Always use compressed air to clean the lens in the optical drive, and follow the instructions that come with the compressed-air product. Never touch the lens in the drive.
  • Page 25: About Your Desktop Computer

    If your operating system has ACPI enabled, when you press the power button the computer will perform an operating system shutdown. Dell badge This badge can be rotated to match the orientation of your computer. To rotate, place fingers around the outside of the badge, press firmly, and turn the badge.
  • Page 26: Back View

    10 floppy drive Insert a floppy disk into this drive. 11 optical drive Insert media (if supported) into this drive.   Back View 1 card slots Access connectors for any installed PCI and PCI Express cards. 2 back-panel Plug serial, USB, and other devices into the appropriate connectors (see connectors Back-Panel Connectors).
  • Page 27: Inside Your Computer

    adapter end of a network cable to either a network jack or your network or connector broadband device. Connect the other end of the network cable to the network adapter connector on the back panel of your computer. A click indicates that the network cable has been securely attached.
  • Page 28: System Board Components

    drive release latch optical drive power supply chassis intrusion switch (optional) system board card slots heat sink assembly front I/O panel       System Board Components speaker connector processor socket memory module connectors (INT_SPKR) (CPU) (DIMM_1, DIMM_2, DIMM_3, DIMM_4) power connector power connector SATA drive connectors (SATA0,...
  • Page 29 Back to Contents Page  ...
  • Page 30: Pci, Pci Express Cards, And Ps/2 Serial Port Adapters

    You can do so by touching an unpainted metal surface on the computer chassis. Your Dell™ computer supports a PS/2 serial port adapter and provides the following connectors for PCI and PCI Express cards:  Two low-profile PCI card slots  One low-profile PCI Express x16 card slot NOTE: Your Dell computer uses only PCI and PCI Express slots. ISA cards are not supported.   PCI Cards   Installing a PCI Card  ...
  • Page 31: Removing A Pci Card

      CAUTION: Some network adapters automatically start the computer when they are connected to a network. To guard against electrical shock, be sure to unplug your computer from its electrical outlet before installing any cards.   6. Place the card in the connector and press down firmly. Ensure that the card is fully seated in the slot. fully seated card 2 not fully seated card bracket within slot...
  • Page 32: Installing A Pci Card In The Riser-Card Cage

    release tab card retention latch card card-edge connector card connector       5. If you are removing the card permanently, install a filler bracket in the empty card-slot opening. NOTE: Installing filler brackets over empty card-slot openings is necessary to maintain FCC certification of the computer. The brackets also keep dust and dirt out of your computer.
  • Page 33 riser-card cage handle       4. If you are installing a new card, remove the filler bracket to create an empty card-slot opening.   5. If you are replacing a card that is already installed in the computer, remove the card.  ...
  • Page 34: Removing A Pci Card From The Riser-Card Cage

    a.  Align the tabs in the side of the riser-card cage with the slots on the side of the computer, and slide the riser-card cage down into place. b.  Ensure that the riser-card connectors are fully seated in the connectors on the system board. c.
  • Page 35 riser-card cage handle       3. Gently lift the release tab on the card retention latch from the inside to pivot the latch open. Pivot the latch until it snaps into the open position.   4. If necessary, disconnect any cables connected to the card.  ...
  • Page 36: Pci Express And Dvi Cards

      11. Uninstall the card's driver. See the documentation that came with the card for instructions.   12. If you removed a sound card: a.  Enter system setup, select Integrated Audio from the Onboard Devices group, and change the setting to On (see System Setup).
  • Page 37 PCI Express x16 or DVI card PCI Express x16 card connector 1 PCI Express x16 card 2 DVI card connector 3 PCI Express x16 card connector fully seated card 2 not fully seated card bracket within slot bracket caught outside of slot  ...
  • Page 38: Removing A Pci Express X16 Card Or Dvi-Card

      11. If you installed a sound card: a.  Enter system setup, select Integrated Audio from the Onboard Devices group, and change the setting to Off (see System Setup). b.  Connect external audio devices to the sound card's connectors. Do not connect external audio devices to the line-in connector on the back panel of the computer (see Back-Panel Connectors).
  • Page 39 PCI Express x16 DVI-card removal pull tab DVI card connector lever securing slot securing tab PCI Express x16 card connector           7. If you are removing the card permanently, install a filler bracket in the empty card-slot opening. NOTE: Installing filler brackets over empty card-slot openings is necessary to maintain FCC certification of the computer.
  • Page 40 riser-card cage handle       4. If you are installing a new card, remove the filler bracket to create an empty card-slot opening. If you are replacing a card that is already installed in the computer, remove the card. If necessary, disconnect any cables connected to the card. Grasp the card by its corners, and ease it out of its connector.
  • Page 41 PCI Express x16 card PCI Express x16 card connector   8. Secure the card(s) by closing the card retention latch and snapping it into place.   9. Replace the riser-card cage: a.  Align the tabs in the side of the riser-card cage with the slots on the side of the computer, and slide the riser-card cage down into place. b.
  • Page 42 Removing a PCI Express Card From the Riser-Card Cage   1. Follow the procedures in Before You Begin.   2. Remove the riser-card cage: a.  Check any cables connected to cards through the back-panel openings. Disconnect any cables that will not reach the riser-card cage once they are removed from the computer.
  • Page 43: Installing A Ps/2 Serial Port Adapter

    NOTICE: Do not route card cables over the cards. Cables routed over the cards can prevent the computer cover from closing properly or cause damage to the equipment.   10. Replace the riser-card cage: a.  Align the tabs in the side of the riser-card cage with the slots on the side of the computer, and slide the riser-card cage down into place. b.
  • Page 44: Removing A Ps/2 Serial Port Adapter

      5. Before you close the card retention mechanism, ensure that:  The tops of all cards and filler brackets are flush with the alignment bar.  The notch in the top of the card or filler bracket fits around the alignment guide.  ...
  • Page 45 Installing a Serial Port Adapter in the Riser-Card Cage   1. Follow the procedures in Before You Begin.   2. Remove the riser-card cage: a.  Check any cables connected to cards through the back-panel openings. Disconnect any cables that will not reach the riser-card cage once they are removed from the computer.
  • Page 46   16. Install any drivers required for the serial port adapter.   Removing a Serial Port Adapter From the Riser-Card Cage   1. Follow the procedures in Before You Begin.   2. Remove the riser-card cage: a.  Check any cables connected to cards through the back-panel openings. Disconnect any cables that will not reach the riser-card cage once they are removed from the computer.
  • Page 47: Removing The Processor

    Back to Contents Page Dell™ Optiplex™ 740 Systems User's Guide   Processor  Processor   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components.
  • Page 48: Installing The Processor

    processor release lever socket NOTICE: Be careful not to bend any of the pins when you remove the processor from the socket. Bending the pins can permanently damage the processor.   5. Remove the processor from the socket. Leave the release lever extended in the release position so that the socket is ready for the new processor, and go to Installing the Processor.
  • Page 49 socket and processor pin-1 indicator processor release lever processor socket         NOTICE: To avoid damage, ensure that the processor aligns properly with the socket, and do not use excessive force when you install the processor.   5. Set the processor lightly in the socket and ensure that the processor is positioned correctly.  ...
  • Page 51 Back to Contents Page   Drives  Drives Your computer supports:  One SATA hard drive  One optional floppy drive or media card reader or one second SATA hard drive  One optional optical (CD or DVD) drive 1 optical drive 2 floppy drive or media card reader or SATA hard drive 3 hard drive  ...
  • Page 52: Connecting And Disconnecting Drive Cables

    Serial ATA Power Connector power cable power input connector       Connecting and Disconnecting Drive Cables When connecting and disconnecting a SATA data cable, hold the cable by the black connector at each end.   Optical Drive   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
  • Page 53: Installing An Optical Drive

    4. Disconnect the power and data cables from the back of the drive.   5. If you are not replacing the optical drive at this time, install the optical drive insert by lowering it into the drive bay until it clicks into place. Contact Dell if you need a drive bay insert.
  • Page 54: Removing A Floppy Drive

    9. Update your configuration information by setting the appropriate Drive option (0 or 1) under Drives. See Entering System Setup for more information.   10. Verify that your computer works correctly by running the Dell Diagnostics (see Dell Diagnostics).  ...
  • Page 55: Removing The Media Card Reader

    10. Enter system setup and set the Diskette Drive option to enable your new floppy drive (see Entering System Setup).   11. Verify that your computer works correctly by running the Dell Diagnostics (see Dell Diagnostics).   Media Card Reader  ...
  • Page 56: Installing The Media Card Reader

    3. Pull up on the drive release latch and slide the media card reader towards the back of the computer. Then, lift up to remove the media card reader from the computer.   4. Disconnect the media card reader cable from the back of the media card reader. media card reader drive release latch media card reader cable...
  • Page 57: Removing The Hard Drive

    10. Enter system setup and set the Diskette Drive option to enable your new media card reader (see Entering System Setup).   11. Verify that your computer works correctly by running theDell Diagnostics (see Dell Diagnostics).   Hard Drive  ...
  • Page 58: Installing A Hard Drive

    securing clips (2) hard drive     NOTICE: Do not pull the drive out of the computer by the drive cables. Doing so may cause damage to cables and the cable connectors.   6. Lift the drive out of the computer and disconnect the power and hard-drive cables from the drive.  ...
  • Page 59 14. Partition and logically format your drive before you proceed to the next step. For instructions, see the documentation that came with your operating system.   15. Verify that your computer works correctly by running the Dell Diagnostics (see Dell Diagnostics).
  • Page 60 1. Check the documentation or the drive to verify that it is configured for your computer.   2. Follow the procedures in Before You Begin.   3. Remove the computer cover (see Removing the Computer Cover).   4. Remove the optical drive (if your configuration has one) (see Removing an Optical Drive).
  • Page 61 14. Partition and logically format your drive. NOTE: For instructions, see the documentation that came with your operating system.   15. Test the hard drive by running the Dell Diagnostics (see Dell Diagnostics).   16. Install your operating system on the (new) second hard drive.
  • Page 62: Desktop Computer

    Windows are registered trademarks of Microsoft Corporation; IBM is a registered trademark of International Business Machines Corporation; Bluetooth is a trademark owned by Bluetooth SIG, Inc. and is used by Dell Inc. under license. ENERGY STAR is a registered trademark of the U.S. Environmental Protection Agency. As an ENERGY STAR partner, Dell Inc.
  • Page 63: Removing The I/O Panel

    Back to Contents Page   I/O Panel  I/O Panel   Removing the I/O Panel   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.   CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover. NOTE: Note the routing of all cables before disconnecting them, so that you can re-route them correctly when installing the new I/O panel.
  • Page 64: Replacing The Power Supply

    Back to Contents Page   Power Supply  Power Supply   Replacing the Power Supply   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components.
  • Page 65: Dc Power Connectors

    12. Replace the computer cover (see Replacing the Computer Cover).   13. Connect the AC power cable to the AC power connector.   DC Power Connectors   DC Power Connector P1       Pin Number Signal name 18-AWG Wire +3.3 VDC Orange +3.3 VDC...
  • Page 66 *Use 22-AWG wire instead of 18-AWG wire.   DC Power Connector P2       Pin Number Signal Name 18-AWG Wire Black Black +12 VDC Yellow +12 VDC Yellow   DC Power Connector P3       Pin Number Signal name 18-AWG Wire +12VDC Yellow...
  • Page 67 Back to Contents Page  ...
  • Page 68: Removing The Computer Cover

    Back to Contents Page Dell™ Optiplex™ 740 Systems User's Guide   Removing the Computer Cover  Removing the Computer Cover   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.   CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the computer cover.
  • Page 69 Back to Contents Page Dell™ Optiplex™ 740 Systems User's Guide   Desktop Computer (Model # DCNE) Specifications  Desktop Computer (Model # DCNE) Specifications   Microprocessor Microprocessor type AMD Phenom™ processors   NOTE: The AMD Phenom processor requires the 8-Mb NVRAM chip and is therefore available only on models that include the 8-Mb NVRAM chip.
  • Page 70 integrated network interface with ASF 1.03 and 2.0 support as defined by DMTF Capable of 10/100/1000 communication   Video Type nVidia integrated video (DirectX 9.0c Shader Model 3.0 Graphics Processing Unit) or PCI Express x16 graphics card or DVI graphics card  ...
  • Page 71 Optional PS/2 with secondary serial port two 6-pin mini-DINs adapter   NOTE: This option uses one of the PCI slots. Optional DVI 36-pin connector   NOTE: This option uses one of the PCI slots. two front-panel and five back-panel USB 2.0– compliant connectors Audio two connectors for line-in and line-out;...
  • Page 72 Heat dissipation 955.39 BTU/hr maximum Voltage manual selection power supplies — 90 to 135 V at 50/60 Hz; 180 to 265 V at 50/60 Hz Backup battery 3-V CR2032 lithium coin cell   Physical Height 11.4 cm (4.5 inches) Width 39.9 cm (15.7 inches) Depth 35.3 cm (13.9 inches) Weight 10.4 kg (23 lb)  ...
  • Page 73: Installing A Speaker

    Back to Contents Page Dell™ Optiplex™ 740 Systems User's Guide   Speaker  Speaker   Installing a Speaker   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.   NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components.
  • Page 74 One Dell Way Round Rock, TX 78682 USA 512-338-4400 NOTE: For additional FCC and other regulatory agency information, see your Product Information Guide (which accompanied your computer). Information is also available on the Internet at dell.com/regulatory_compliance. Back to Contents Page  ...
  • Page 75: Finding Information

        NOTE: Drivers and documentation updates can be found at support.dell.com.  How to set up my computer   Quick Reference Guide  Basic troubleshooting information  How to run the Dell Diagnostics  ...
  • Page 76 3.  Select your product model and click Confirm, or enter a service tag and click Go. 4.  Click System Utilities. 5.  Click Desktop System Software under Dell - Utility, and click Download Now. 6.  Click Run to run the driver, or Save to save the driver to your computer.
  • Page 77 Dell Support 3 is an automated upgrade and notification system installed on your computer. This support provides real-time health scans of your computing environment, software updates, and relevant self-support information. Access Dell Support 3 from the icon in the taskbar.
  • Page 78: Getting Help

    Dell's Express Service Code system may not be available in all countries. When prompted by Dell's automated telephone system, enter your Express Service Code to route the call directly to the proper support personnel. If you do not have an Express Service Code, open the Dell Accessories folder, double-click the Express Service Code icon, and follow the directions.
  • Page 79: Problems With Your Order

     Product Information If you need information about additional products available from Dell, or if you would like to place an order, visit the Dell website at www.dell.com. For the telephone number to call for your region or to speak to a sales specialist, see Contacting Dell.
  • Page 80: Before You Call

    For customers in the United States, call 800-W W W-DELL (800-999-3355). NOTE: If you do not have an active Internet connection, you can find contact information on your purchase invoice, packing slip, bill, or Dell product catalog. Dell provides several online and telephone-based support and service options. Availability varies by country and product, and some services may not be available in your area.
  • Page 81 Back to Contents Page   Glossary Terms in this Glossary are provided for informational purposes only and may or may not describe features included with your particular computer.  A AC — alternating current — The form of electricity that powers your computer when you plug the AC adapter power cable in to an electrical outlet. ACPI —...
  • Page 82 but you can write to CD-R discs only once. CD-RW/DVD drive — A drive, sometimes referred to as a combo drive, that can read CDs and DVDs and write to CD-RW (rewritable CDs) and CD-R (recordable CDs) discs. You can write to CD-RW discs multiple times, but you can write to CD-R discs only once. clock speed —...
  • Page 83 ExpressCard — A removable I/O card adhering to the PCMCIA standard. Modems and network adapters are common types of ExpressCards. ExpressCards support both the PCI Express and USB 2.0 standard. Express Service Code — A numeric code located on a sticker on your Dell™ computer. Use the Express Service Code when contacting Dell for assistance.  Express Service Code service may not be available in some countries.
  • Page 84 MB/sec — megabytes per second — One million bytes per second. This measurement is typically used for data transfer ratings. media bay — A bay that supports devices such as optical drives, a second battery, or a Dell TravelLite™ module. memory — A temporary data storage area inside your computer. Because the data in memory is not permanent, it is recommended that you frequently save your files while you are working on them, and always save your files before you shut down the computer.
  • Page 85 Mini PCI — A standard for integrated peripheral devices with an emphasis on communications such as modems and NICs. A Mini PCI card is a small external card that is functionally equivalent to a standard PCI expansion card. Mini-Card — A small card designed for integrated peripherals, such as communication NICs. The Mini-Card is functionally equivalent to a standard PCI expansion card.
  • Page 86 — An I/O port often used to connect devices such as a handheld digital device or digital camera to your computer. Service Tag — A bar code label on your computer that identifies your computer when you access Dell Support at support.dell.com or when you call Dell for customer service or technical support.
  • Page 87 SXGA+ — super-extended graphics array plus — A video standard for video cards and controllers that supports resolutions up to 1400 x 1050. system board — The main circuit board in your computer. Also known as the motherboard. system setup — A utility that serves as an interface between the computer hardware and the operating system. System setup allows you to configure user- selectable options in the BIOS, such as date and time or system password.
  • Page 88 write-protected — Files or media that cannot be changed. Use write-protection when you want to protect data from being changed or destroyed. To write- protect a 3.5-inch floppy disk, slide its write-protect tab to the open position. WWAN — wireless wide area network. A wireless high-speed data network using cellular technology and covering a much larger geographic area than WLAN. WXGA —...
  • Page 89: Ddr2 Memory Overview

     Desktop Computer (Model # DCNE) Specifications  Small Form Factor Computer (Model # DCCY) Specifications NOTICE: Before you install new memory modules, download the most recent BIOS for your computer from the Dell Support website at support.dell.com. NOTE: Memory purchased from Dell is covered under your computer warranty.
  • Page 90: Removing Memory

    If you remove your original memory modules from the computer during a memory upgrade, keep them separate from any new modules that you may have, even if you purchased the new modules from Dell. If possible, do not pair an original memory module with a new memory module.
  • Page 91: Installing Memory

    To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer chassis. NOTE: Memory purchased from Dell is covered under your computer warranty.   1. Follow the procedures in Before You Begin.
  • Page 92 Then repeat steps 7, 8, and 9.   11. When the System Memory total is correct, press <Esc> to exit system setup.   12. Run the Dell Diagnostics (see Dell Diagnostics) to verify that the memory modules are operating properly. Back to Contents Page...
  • Page 93: Pci, Pci Express Cards, And Ps/2 Serial Port Adapters

     Two PCI card slots  One PCI Express x16 card slot  One PCI Express x1 card slot NOTE: Your Dell computer uses only PCI and PCI Express slots. ISA cards are not supported.   PCI Cards   Installing a PCI Card  ...
  • Page 94: Removing A Pci Card

      5. Prepare the new card for installation.   CAUTION: Some network adapters automatically start the computer when they are connected to a network. To guard against electrical shock, be sure to unplug your computer from its electrical outlet before installing any cards. NOTE: See the documentation that came with the card for information on configuring the card, making internal connections, or customizing it for your computer...
  • Page 95 card retention latch alignment guide card card-edge connector card connector release tab   3. If necessary, disconnect any cables connected to the card.   4. Grasp the card by its top corners, and ease it out of its connector.   5.
  • Page 96: Pci Express Cards

    a.  Enter system setup, select Integrated NIC from the Onboard Devices group, and change the setting to On (see System Setup). b.  Connect the network cable to the integrated network connector on the back panel of the computer.   PCI Express Cards Your computer supports one PCI Express x16 card and one PCI Express x1 card.
  • Page 97   6. Place the card in the connector and press down firmly. Ensure that the card is fully seated in the slot. PCI Express x1 card PCI Express x1 card connector     fully seated card 2 not fully seated card bracket within slot bracket caught outside of slot  ...
  • Page 98   Removing a PCI Express x1 Card   1. Follow the procedures in Before You Begin.   2. Gently push the release tab on the card retention latch from the inside to pivot the latch open. The latch will remain in the open position. card retention latch alignment guide card...
  • Page 99 PCI Express x16 card PCI Express x16 card connector 1 PCI Express x16 card 2 DVI-card connector 3 PCI Express x16 card connector fully seated card 2 not fully seated card bracket within slot bracket caught outside of slot    ...
  • Page 100 a.  Enter system setup, select Integrated Audio from the Onboard Devices group, and change the setting to Off (see System Setup). b.  Connect external audio devices to the sound card's connectors. Do not connect external audio devices to the line-in connector on the back panel of the computer (see Back-Panel Connectors).
  • Page 101: Installing A Ps/2 Serial Port Adapter

    PCI Express x16 DVI-card removal pull tab DVI-card connector lever securing slot securing tab PCI Express x16 card connector           7. If you are removing the card permanently, install a filler bracket in the empty card-slot opening. NOTE: Installing filler brackets over empty card-slot openings is necessary to maintain FCC certification of the computer.
  • Page 102: Removing A Ps/2 Serial Port Adapter

    card retention latch alignment guide       3. Remove the filler bracket (if applicable). NOTE: See the documentation that came with the PS/2 serial port adapter for information on configuring the adapter, making internal connections, or customizing it for your computer.  ...
  • Page 103   1. Follow the procedures in Before You Begin.   2. Gently push the release tab on the card retention latch from the inside to pivot the latch open. The latch will remain in the open position. card retention latch alignment guide  ...
  • Page 104: Removing The Processor

    Back to Contents Page Dell™ Optiplex™ 740 Systems User's Guide   Processor  Processor   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components.
  • Page 105: Installing The Processor

    processor release lever socket NOTICE: Be careful not to bend any of the pins when you remove the processor. Bending the pins can permanently damage the processor.   5. Remove the processor from the socket. Leave the release lever extended in the release position so that the socket is ready for the new processor and go to Installing the Processor.
  • Page 106 socket and processor pin-1 indicator processor release lever processor socket         NOTICE: To avoid damage, ensure that the processor aligns properly with the socket, and do not use excessive force when you install the processor.   5. Set the processor lightly in the socket and ensure that the processor is positioned correctly.  ...
  • Page 107 10. Replace the computer cover (see Replacing the Computer Cover). Back to Contents Page  ...
  • Page 108: General Installation Guidelines

    Back to Contents Page Dell™ Optiplex™ 740 Systems User's Guide   Drives  Drives Your computer supports:  Two SATA (Serial ATA) hard drives  One optional floppy drive or Media Card Reader  Two optical drives optical drive floppy drive or media card reader hard drive  ...
  • Page 109: Connecting And Disconnecting Drive Cables

    Interface connectors are keyed for correct insertion.   Power Cable Connectors   Serial ATA Power Connector power cable power input connector       Connecting and Disconnecting Drive Cables When connecting and disconnecting a SATA data cable, hold the cable by the black connector at each end.  ...
  • Page 110: Installing A Hard Drive

    hard-drive cable hard-drive cable on system board power cable   4. Press in on the blue release tabs on each side of the drive and slide the drive up and out of the computer. hard drive release tabs (2)    ...
  • Page 111 hard drive hard-drive bracket     hard drive hard drive mounting holes hard-drive bracket bracket alignment tabs           4. Carefully slide the hard drive into the drive bay until it clicks into place.   5. Connect the power and hard-drive cables to the drive.  ...
  • Page 112: Adding A Second Hard Drive

      11. Partition and logically format your drive before you proceed to the next step. See the documentation for your operating system for instructions.   12. Test the hard drive by running the Dell Diagnostics (see Dell Diagnostics).   13. If the drive you just installed is the primary drive, install your operating system on the hard drive.
  • Page 113: Drive-Panel Inserts

      8. Locate and connect a SATA cable to the SATA1 connector on the system board (see System Board Components for mini tower computers). 1 hard-drive data 2 hard-drivedata cable on system 3 hard-drive power cable board cable   9. Replace the computer cover (see Replacing the Computer Cover).
  • Page 114 drive panel release tab drive-panel insert   3. Select the drive-panel insert in front of the drive bay that you want to use.   4. Gently press the release tab of the insert to remove it from the drive panel. 1 optical-drive panel 2 floppy-drive/media card reader panel 3 holder for shoulder...
  • Page 115: Removing The Floppy Drive

    Floppy Drive   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.   CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the computer cover.  ...
  • Page 116 8. Enter system setup and use the Diskette Drive option to enable your new floppy drive (see Entering System Setup).   9. Verify that your computer works correctly by running the Dell Diagnostics (see Dell Diagnostics).   Media Card Reader  ...
  • Page 117   1. Follow the procedures in Before You Begin.   2. Remove the drive panel by sliding the drive release latch in the direction indicated on the latch to open the panel. Then remove it from the hinges.   3. Disconnect the media card reader cable from the back of the media card reader.  ...
  • Page 118: Removing An Optical Drive

    8. Enter system setup and use the Diskette Drive option to enable your new media card reader (see Entering System Setup).   9. Verify that your computer works correctly by running the Dell Diagnostics (see Dell Diagnostics).   Optical Drive  ...
  • Page 119 Replacing the Computer Cover).   10. Update your configuration information in system setup (see System Setup) by setting the appropriate Drive option (0 or 1) under Drives.   Verify that your computer works correctly by running the Dell Diagnostics (see Dell Diagnostics).
  • Page 120 Back to Contents Page  ...
  • Page 121: Mini Tower Computer

    Windows are registered trademarks of Microsoft Corporation; IBM is a registered trademark of International Business Machines Corporation; Bluetooth is a trademark owned by Bluetooth SIG, Inc. and is used by Dell Inc. under license. ENERGY STAR is a registered trademark of the U.S. Environmental Protection Agency. As an ENERGY STAR partner, Dell Inc.
  • Page 122: Removing The I/O Panel

    Back to Contents Page Dell™ Optiplex™ 740 Systems User's Guide   I/O Panel  I/O Panel   Removing the I/O Panel   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.   CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover.
  • Page 123  ...
  • Page 124: Replacing The Power Supply

    Back to Contents Page Dell™ Optiplex™ 740 Systems User's Guide   Power Supply  Power Supply   Replacing the Power Supply   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components.
  • Page 125: Dc Power Connectors

      9. Reconnect the DC power cables to the system board and drives.   10. Replace the computer cover (see Replacing the Computer Cover).   11. Connect the AC power cable to the AC power connector.   DC Power Connectors  ...
  • Page 126 Black Black +5 VDC +5 VDC +5 VDC Black     DC Power Connector P2       Pin Number Signal Name 18-AWG Wire Black Black +12 VADC Yellow +12 VADC Yellow   DC Power Connectors P3, P5, P8, and P9  ...
  • Page 127: Removing The Computer Cover

    Back to Contents Page Dell™ Optiplex™ 740 Systems User's Guide   Removing the Computer Cover  Removing the Computer Cover   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.   CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the computer cover.
  • Page 128 Back to Contents Page   Mini Tower Computer (Model #DCSM) Specifications  Mini Tower Computer (Model #DCSM) Specifications   Microprocessor Microprocessor type AMD Phenom™ processors   NOTE: The AMD Phenom processor requires the 8-Mb NVRAM chip and is therefore available only on models that include the 8-Mb NVRAM chip. If your computer has the 8-Mb NVRAM chip and the AMD Phenom processor, the word enhanced appears in the title on the BIOS splash screen and the system setup...
  • Page 129 Capable of 10/100/1000 communication   Video Type nVidia integrated video (DirectX 9.0c Shader Model 3.0 Graphics Processing Unit) or PCI Express x16 graphics card or DVI graphics card   Audio Type Sigma Tel 9200 CODEC (2.1 Channel Audio) Stereo conversion 24-bit analog-to-digital;...
  • Page 130 NOTE: This option uses one of the PCI slots. two front-panel and five back-panel USB 2.0– compliant connectors Audio two connectors for line-in and line-out; two front- panel connectors for headphones and microphone System board connectors: SATA four 7-pin connectors Floppy drive 34-pin connector Serial...
  • Page 131   Physical Height 41.4 cm (16.3 inches) Width 18.5 cm (7.3 inches) Depth 43.9 cm (17.3 inches) Weight 12.34 kg (27.2 lb)   Environmental Temperature: Operating 10° to 35°C (50° to 95°F) Storage –40° to 65°C (–40° to 149°F) Relative humidity 20% to 80% (noncondensing) Maximum vibration: Operating 0.25 G at 3 to 200 Hz at 0.5 octave/min Storage 0.5 G at 3 to 200 Hz at 1 octave/min Maximum shock:...
  • Page 132: Installing A Speaker

    Back to Contents Page Dell™ Optiplex™ 740 Systems User's Guide   Speaker  Speaker   Installing a Speaker   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.   NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components.
  • Page 133 4. Remove the speaker from the chassis of the computer.   5. Replace the computer cover.   6. Turn on power to the computer.   Back to Contents Page  ...
  • Page 134 Back to Contents Page   Microsoft® Windows® XP and Windows Vista® Features   Transferring Information to a New Computer   User Accounts and Fast User Switching   Setting Up a Home and Office Network  Transferring Information to a New Computer You can use your operating system "wizards" to help you transfer files and other data from one computer to another—for example, from an old computer to a new computer.
  • Page 135: Running The Files And Settings Transfer Wizard Without The Operating System Media

      1. On the old computer, insert the Windows XP Operating System media.   2. On the Welcome to Microsoft Windows XP screen, click Perform additional tasks.   3. Under What do you want to do?, click Transfer files and settings® Next.  ...
  • Page 136: User Accounts And Fast User Switching

    When all of the settings and files have been applied, the Finished screen appears.   3. Click Finished and restart the new computer. NOTE: For more information about this procedure, search support.dell.com for document #154781 (What Are The Different Methods To Transfer Files From ® ® My Old Computer To My New Dell™ Computer Using the Microsoft Windows XP Operating System?).
  • Page 137: Fast User Switching

    Fast User Switching Fast User Switching allows multiple users to access one computer without requiring the previous user to log off.   Windows Vista   1. Click the Windows Vista Start button and then click Transfer files and settings® Start Windows Easy Transfer. The current user's name and picture appear on the Start menu.
  • Page 138: Network Setup Wizard

      network adapter connector 2 network device network cable network adapter connector on computer           Network Setup Wizard   Windows Vista   1. Click the Windows Vista Start button and then click Connect To® Set up a connection or network.  ...
  • Page 139: Replacing The Computer Cover

    Back to Contents Page   Replacing the Computer Cover Dell™ Optiplex™ 740 Systems User's Guide   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.   1. Ensure that all cables are connected, and fold cables out of the way.
  • Page 140 You can do so by touching an unpainted metal surface on the computer chassis. Your Dell™ computer supports a PS/2 serial port adapter and provides the following connectors for PCI and PCI Express cards:  One low-profile PCI card slot  One low-profile PCI Express x16 card slot NOTE: Your Dell computer uses only PCI and PCI Express slots. ISA cards are not supported.   PCI Cards   Installing a PCI Card  ...
  • Page 141   CAUTION: Some network adapters automatically start the computer when they are connected to a network. To guard against electrical shock, be sure to unplug your computer from its electrical outlet before installing any cards. NOTE: See the documentation that came with the card for information on configuring the card, making internal connections, or customizing it for your computer.
  • Page 142   2. Gently lift the release tab on the card retention latch from the inside and pivot the latch open.   3. If necessary, disconnect any cables connected to the card.   4. Grasp the card by its top corners, and ease it out of its connector. release tab card retention latch card...
  • Page 143 Installing a PCI Express x16 Card or DVI Card   1. Follow the procedures in Before You Begin. NOTE: For PCI card locations, see System Board Components.   2. Gently lift the release tab on the card retention latch from the inside and pivot the latch open.  ...
  • Page 144 fully seated card 2 not fully seated card bracket within slot bracket caught outside of slot         NOTICE: Do not route card cables over the cards. Cables routed over the cards can prevent the computer cover from closing properly or cause damage to the equipment.
  • Page 145 1 PCI Express x16 card 2 lever 3 securing slot (not all cards) 4 securing tab 5 PCI Express x16 card connector       6. While pressing the lever, pull the removal pull tab up and remove the card out of the card connector. PCI Express x16 DVI-card removal pull tab DVI card connector...
  • Page 146   13. If you removed a network-adapter card connector: a.  Enter system setup, select Integrated NIC from the Onboard Devices group, and change the setting to On (see System Setup). b.  Connect the network cable to the integrated network connector on the back panel of the computer.  ...
  • Page 147   Removing a PS/2 Serial Port Adapter   1. Follow the procedures in Before You Begin.   2. Gently lift the release tab on the card retention latch from the inside and pivot the latch open.   3. Disconnect the PS/2 serial port cable from the system board (see System Board Components).
  • Page 148 Back to Contents Page Dell™ Optiplex™ 740 Systems User's Guide   Processor  Processor   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components.
  • Page 149 processor release lever socket NOTICE: Be careful not to bend any of the pins when you remove the processor from the socket. Bending the pins can permanently damage the processor.   7. Remove the processor from the socket. Leave the release lever extended in the release position so that the socket is ready for the new processor, and go to Installing the Processor.
  • Page 150 socket and processor pin-1 indicator processor release lever processor socket         NOTICE: To avoid damage, ensure that the processor aligns properly with the socket, and do not use excessive force when you install the processor.   5. Set the processor lightly in the socket and ensure that the processor is positioned correctly.  ...
  • Page 151 Back to Contents Page  ...
  • Page 152 Back to Contents Page Dell™ Optiplex™ 740 Systems User's Guide   Removing the Computer Cover  Removing the Computer Cover   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.   CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the computer cover.
  • Page 153 Back to Contents Page   Drives  Drives Your computer supports:  One SATA hard drive  One floppy drive or Media Card Reader  One SATA optical drive FlexBay for floppy drive or Media Card Reader 2 optical drive hard drive   General Installation Guidelines  ...
  • Page 154   Serial ATA Power Connector power cable power input connector       Connecting and Disconnecting Drive Cables When connecting and disconnecting a SATA data cable, hold the cable by the black connector at each end.   Hard Drive   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
  • Page 155 securing tabs (2) hard drive       7. Disconnect the power and data cable from the drive. power cable SATA data cable fan cable   8. Disconnect the hard drive fan from the system board.   Installing a Hard Drive  ...
  • Page 156 13. Partition and logically format your drive before you proceed to the next step. For instructions, see the documentation that came with your operating system.   14. Test the hard drive by running the Dell Diagnostics (see Dell Diagnostics).  ...
  • Page 157: Replacing A Hard-Drive Fan

    Replacing a Hard-Drive Fan   1. Follow the instructions in Before You Begin.   2. Remove the hard drive (see Removing a Hard Drive).   3. Turn the hard drive upside down, so that the hard-drive fan is visible in the bottom of the drive bracket.  ...
  • Page 158 1 drive release latch 2 optical drive   4. Disconnect the power and data cable from the back of the drive. 1 optical drive 2 data cable 3 power cable   Installing an Optical Drive   1. Unpack the drive and prepare it for installation.  ...
  • Page 159: Floppy Drive And Media Card Reader

    7. See the documentation that came with the drive for instructions on installing any software required for drive operation.   8. Enter system setup and select the appropriate Drive option (see Entering System Setup).   9. Verify that your computer works correctly by running the Dell Diagnostics (see Dell Diagnostics).   Floppy Drive and Media Card Reader  ...
  • Page 160 cable release tab data cable edge connector       6. If you are removing a Media Card Reader, disconnect the data cable.   7. If you are removing the Media Card Reader, remove the hard drive (see Removing a Hard Drive).
  • Page 161 floppy drive or Media Card Reader screws (3) bracket rails (3)   1. If you are:  Installing a new floppy drive or Media Card Reader, remove the drive panel insert  Replacing a drive, remove the floppy drive or Media Card Reader (see Floppy Drive and Media Card Reader).
  • Page 162 System Setup). See the documentation that came with the drive for instructions on installing any software required for drive operation.   9. Verify that your computer works correctly by running the Dell Diagnostics (see Dell Diagnostics). Back to Contents Page...
  • Page 163 Windows are registered trademarks of Microsoft Corporation; IBM is a registered trademark of International Business Machines Corporation; Bluetooth is a trademark owned by Bluetooth SIG, Inc. and is used by Dell Inc. under license. ENERGY STAR is a registered trademark of the U.S. Environmental Protection Agency. As an ENERGY STAR partner, Dell Inc.
  • Page 164 Back to Contents Page Dell™ Optiplex™ 740 Systems User's Guide   I/O Panel  I/O Panel   Removing the I/O Panel   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.   CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the computer cover.
  • Page 165 fan cable connector air temperature sensor cable I/O cable connector screw I/O panel       6. From inside the computer cover, remove the mounting screw that secures the I/O panel to the computer.   7. Ease the I/O panel back and forth to release its circular tabs from the two holes in the chassis that secure it.  ...
  • Page 166 Back to Contents Page Dell™ Optiplex™ 740 Systems User's Guide   Power Supply  Power Supply   Replacing the Power Supply   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components.
  • Page 167 12. Replace the optical drive (see Installing an Optical Drive).   13. Replace the computer cover (see Replacing the Computer Cover).   14. Connect the AC power cable to the power supply AC power connector. NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.  ...
  • Page 168 Black VCC (+5V) VCC (+5V) VCC (+5V) Black *Use 22-AWG wire instead of 18-AWG wire.   DC Power Connector P2       Pin Number Signal Name 18-AWG Wire Black Black +12 VDC Yellow +12 VDC Yellow   DC Power Connectors P3  ...
  • Page 169 Back to Contents Page Dell™ Optiplex™ 740 Systems User's Guide   Small Form Factor Computer (Model # DCCY) Specifications  Small Form Factor Computer (Model # DCCY) Specifications   Microprocessor Microprocessor type AMD Phenom™ processors   NOTE: The AMD Phenom processor requires the 8-Mb NVRAM chip and is therefore available only on models that include the 8-Mb NVRAM chip.
  • Page 170   Video Type nVidia integrated video (DirectX 9.0c Shader Model 3.0 Graphics Processing Unit), PCI Express x16 graphics card, or DVI graphics card.   Audio Type Sigma Tel 9200 CODEC (2.1 Channel Audio) Stereo conversion 24-bit analog-to-digital; 24-bit digital-to-analog   Controllers Drives one SATA controller supporting two devices...
  • Page 171 two front-panel and five back-panel USB 2.0– compliant connectors Audio two connectors for line-in and line-out; two front- panel connectors for headphones and microphone System board connectors: SATA two 7-pin connectors Floppy drive 38-pin connector Serial 24-pin connector for optional second serial port card two 5-pin connector fans PCI 2.3 124-pin connector...
  • Page 172 Weight 7.4 kg (16.4 lb)   Environmental Temperature: Operating 10° to 35°C (50° to 95°F) Storage –40° to 65°C (–40° to 149°F) Relative humidity 20% to 80% (noncondensing) Maximum vibration: Operating 0.25 G at 3 to 200 Hz at 0.5 octave/min Storage 0.5 G at 3 to 200 Hz at 1 octave/min Maximum shock: Operating bottom half-sine pulse with a change in velocity of...
  • Page 173 Back to Contents Page Dell™ Optiplex™ 740 Systems User's Guide   Speaker  Speaker   Installing a Speaker   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.   NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components.
  • Page 174: About Your Small Form Factor Computer

    If your operating system has ACPI enabled, when you press the power button the computer will perform an operating system shutdown. Dell badge This badge can be rotated to match the orientation of your computer. To rotate, place fingers around the outside of the badge, press firmly, and turn the badge.
  • Page 175: Back View

    connector 10 3.5-inch drive Can contain an optional slimline floppy drive or optional slimline media card reader. 11 optical drive Insert a slimline media (if supported) into this drive.   Back View 1 card slots Access connectors for any installed PCI and PCI Express cards. 2 back-panel Plug serial, USB, and other devices into the appropriate connectors (see connectors...
  • Page 176: Inside Your Computer

    network adapter connector on the back panel of your computer. A click indicates that the network cable has been securely attached.   NOTE: Do not plug a telephone cable into the network connector. On computers with a network connector card, use the connector on the card.
  • Page 177: System Board Components

    drive-release latch optical drive power supply chassis intrusion switch (optional) hard drive card slots (2) system board heat sink assembly       System Board Components fan connector (FAN_CPU) processor socket power connector (CPU) (PW_12V_A1) memory module connectors power connector SATA drive connectors (DIMM_1, DIMM_2, DIMM_3, (POWER1)
  • Page 178 19 Optional DVI-card connector 20 speaker connector     (DVI_HDR) (INT_SPKR) Back to Contents Page  ...
  • Page 179: Reinstalling Drivers And The Operating System

    A driver acts like a translator between the device and any other programs that use the device. Each device has its own set of specialized commands that only its driver recognizes. Dell ships your computer to you with required drivers already installed—no further installation or configuration is needed. NOTICE: The optional Drivers and Utilities media may contain drivers for operating systems that are not on your computer.
  • Page 180: Reinstalling Drivers And Utilities

      Reinstalling Drivers and Utilities NOTICE: The Dell Support website at support.dell.com and your Drivers and Utilities media provide approved drivers for Dell™ computers. If you install  drivers obtained from other sources, your computer might not work correctly. NOTE: The Drivers and Utilities media is optional, and as such, may not ship with certain computers.
  • Page 181 If this is your first time to use the Drivers and Utilities media, the Installation window opens to inform you that the media will begin the installation. Click OK and respond to the installation program prompts to complete the installation.   2. Click Next at the Welcome Dell System Owner screen.   3. Choose the appropriate selections for System Model, Operating System, Device Type, and Topic.
  • Page 182: Restoring Your Operating System

    To view a list of all available drivers for your computer, click Drivers in the Topic drop-down menu. To access the help files on the Drivers and Utilities media, click the question mark button or the Help link at the top of the screen.  Restoring Your Operating System The Microsoft Windows operating system provides System Restore to allow you to return your computer to an earlier operating state (without affecting data files) if changes to the hardware, software, or other system settings have left the computer in an undesirable operating state.
  • Page 183: Undoing The Last System Restore

    1. Save and close any open files and exit any open programs.   2. Insert the Operating System disc.   3. Click Exit if the Install Windows message appears.   4. Restart the computer. When the DELL logo appears, press <F12> immediately.
  • Page 184 The Operating System media provides options for reinstalling Windows XP. The options can overwrite files and possibly affect programs installed on your hard drive. Therefore, do not reinstall Windows XP unless a Dell technical support representative instructs you to do so.
  • Page 185   5. Press <Enter> to select the highlighted partition (recommended), and follow the instructions on the screen. The Windows XP Setup screen appears, and the operating system begins to copy files and install the devices. The computer automatically restarts multiple times. NOTICE: Do not press any key when the following message appears: Press any key to boot from the CD.
  • Page 186: Solving Problems

     If you have to repeatedly reset time and date information after turning on the computer, or if an incorrect time or date displays during start-up, replace the battery (see Replacing the Battery). If the battery still does not work properly, contact Dell (see Contacting Dell).
  • Page 187: Cd And Dvd Drive Problems

    If your primary hard drive is connected to a drive controller card leave the drive controller card installed in the computer. 3.  Close the computer cover (see Replacing the Computer Cover), reconnect the computer and devices to electrical outlets, and then turn them on. 4.  Run the Dell Diagnostics (see Dell Diagnostics).   Test the cards  —...
  • Page 188: Hard Drive Problems

     Click the speaker icon in the lower-right corner of your screen.  Ensure that the volume is turned up by clicking the slidebar and dragging it up.  Ensure that the sound is not muted by clicking any boxes that are checked.  ...
  • Page 189: Fan Problems

     Remove keyboard extension cables and connect the keyboard directly to the computer.   Test the keyboard  —  Connect a properly working keyboard to the computer, and try using the keyboard. If the new keyboard works, the original keyboard is faulty.   Run the Dell Diagnostics  —  See Dell Diagnostics.  ...
  • Page 190: A Program Crashes Repeatedly

    Use a virus-scanning program to check the hard drive, floppy disks, or CDs   Save and close any open files or programs and shut down your computer through the Start menu   Run the Dell Diagnostics  —  If all tests run successfully, the error condition is related to a software problem (see Dell Diagnostics).
  • Page 191: Memory Problems

     Save and close any open files and exit any open programs you are not using to see if that resolves the problem.  See the software documentation for minimum memory requirements. If necessary, install additional memory.  Reseat the memory modules to ensure that your computer is successfully communicating with the memory.  Run the Dell Diagnostics (see Dell Diagnostics).   If you experience other memory problems  —...
  • Page 192: Network Problems

    1.  Enter system setup and ensure that the Mouse Port option is set to On. 2.  Exit system setup and restart the computer.   Reinstall the mouse driver — Reinstalling Drivers and Utilities.   Run the Dell Diagnostics —  See Dell Diagnostics.   Check for software and hardware conflicts  —  See Resolving Software and Hardware Incompatibilities.
  • Page 193: Printer Problems

    properly.  Ensure that the electrical outlet is working by testing it with another device, such as a lamp.  Ensure that the main power cable and front panel cable are securely connected to the system board.   If the power light is amber and green or steady amber  —  A device might be malfunctioning or incorrectly installed.  Remove and then reinstall the memory modules (see Memory).
  • Page 194: Restoring Default Settings

     See the device's documentation for the recommended settings. Then enter system setup (see System Setup) and ensure that the Serial Port #1 setting (or the Serial Port #2 settings if you have an optional serial port adapter installed) or the LPT Port Mode setting matches the recommended settings.   Run the Dell Diagnostics  —  See Dell Diagnostics.
  • Page 195: No Sound From Headphones

    See Drivers.   Check the device option setting  —  Enter system setup (see System Setup) and ensure that the Audio Controller option is set to On. Exit system setup and restart your computer.   Run the Dell Diagnostics  —  See Dell Diagnostics.   Check for software and hardware conflicts —...
  • Page 196: If The Screen Is Difficult To Read

    Test the electrical outlet  —  Ensure that the electrical outlet is working by testing it with another device, such as a lamp.   Test the monitor  —  Connect a properly working monitor to the computer, and try using the monitor. If the new monitor works, the original monitor is faulty.
  • Page 197: Removing The Chassis Intrusion Switch

    Back to Contents Page   Chassis Intrusion Switch Dell™ Optiplex™ 740 Systems User's Guide   Removing the Chassis Intrusion Switch   Replacing the Chassis Intrusion Switch   Resetting the Chassis Intrusion Detector   CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.
  • Page 198: Replacing The Chassis Intrusion Switch

     Resetting the Chassis Intrusion Detector   1. Turn on (or restart) your computer.   2. When the blue DELL™ logo appears, press <F2> immediately.  If you wait too long and the operating system logo appears, continue to wait until you see the Microsoft® Windows® desktop. Then shut down your computer and try again.  ...
  • Page 199 Back to Contents Page  ...
  • Page 200: Replacing The System Board

    Back to Contents Page   Replacing the System Board Dell™ Optiplex™ 740 Systems User's Guide   Removing the System Board: Mini Tower, Desktop, and Small Form Factor Computers   1. Follow the procedures in Before You Begin. NOTICE: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the metal at the back of the computer.
  • Page 201: Small Form Factor System Board Screws

    desktop system board screws (8)       Small Form Factor System Board Screws small form factor system board screws (6)     Place the system board assembly that you just removed next to the replacement system board to ensure it is identical.  ...
  • Page 202 Back to Contents Page  ...
  • Page 203 Windows are registered trademarks of Microsoft Corporation; IBM is a registered trademark of International Business Machines Corporation; Bluetooth is a trademark owned by Bluetooth SIG, Inc. and is used by Dell Inc. under license. ENERGY STAR is a registered trademark of the U.S. Environmental Protection Agency. As an ENERGY STAR partner, Dell Inc.
  • Page 204: About Your Mini Tower Computer

    Back to Contents Page   Mini Tower Computer Dell™ Optiplex™ 740 Systems User's Guide   About Your Mini Tower Computer   Inside Your Computer  About Your Mini Tower Computer   Front View optical drive Insert media (if supported) into this drive. (optional) Flexbay drive Can contain an optional floppy drive or an optional media card reader.
  • Page 205  Blinking or solid amber — See Power Problems. To exit from a power-saving mode, press the power button or use the keyboard or the mouse if it is configured as a wake device in the Windows Device Manager. For more information about sleep modes and exiting from a power-saving mode, see Power Management.
  • Page 206 1 parallel Connect a parallel device, such as a printer, to the parallel connector. If connector you have a USB printer, plug it into a USB connector.   NOTE: The integrated parallel connector is automatically disabled if the computer detects an installed card containing a parallel connector configured to the same address.
  • Page 207 CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.   CAUTION: To avoid electrical shock, always unplug your computer from the electrical outlet before removing the computer cover. NOTICE: Be careful when opening the computer cover to ensure that you do not accidentally disconnect cables from the system board.
  • Page 208 (FRONTPANEL) (POWER1) (INTRUDER) 10 CMOS reset jumper 11 battery socket 12 internal USB (USB1) (RTCRST) (BATTERY) 13 PCI Express x16 14 standby power 15 PCI connector (SLOT2) connector (SLOT1) (AUX_PWR_LED) 16 PCI Express x1 17 password jumper 18 PCI connector (SLOT3) connector (SLOT4) (PSWD) 19 floppy drive connector...
  • Page 209: Troubleshooting Tools And Utilities

    Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.   When to Use the Dell Diagnostics If you experience a problem with your computer, perform the checks in this section and run the Dell Diagnostics before you contact Dell (see Contacting Dell) for technical assistance.
  • Page 210: Dell Diagnostics Main Menu

    NOTE: The Service Tag for your computer is located at the top of each test screen. If you contact Dell, technical support will ask for your Service Tag. Your computer's Service Tag is listed in the System Info option in system setup.
  • Page 211: Diagnostic Lights

    Solid yellow The Dell Diagnostics is running a test, or a device on the If the Dell Diagnostics is running, allow the testing to system board may be faulty or incorrectly installed. complete.
  • Page 212: Beep Codes

    If your computer beeps during start-up:   1. Write down the beep code on the Diagnostics Checklist (see Diagnostics Checklist).   2. Run the Dell Diagnostics to identify a more serious cause (see Dell Diagnostics).   3. Contact Dell for technical assistance (see Contacting Dell).
  • Page 213 Diskette drive 0 seek failure  — Drive Problems.   Diskette read failure  — Drive Problems.   Diskette subsystem reset failed  —  Run the Dell Diagnostics (see Dell Diagnostics).   Diskette write protected  —  Slide the write-protect notch on the floppy disk to the open position.   Drive not ready  —  Put a floppy disk in the drive.  ...
  • Page 214 Enter system setup and ensure that the computer configuration information for the hard drive is correct (see Entering System Setup).   No timer tick interrupt  —   Run the Dell Diagnostics (see Dell Diagnostics).   Non-system disk or disk error  —  Replace the floppy disk with one that has a bootable operating system or remove the floppy disk from drive A and restart the computer.
  • Page 215: Resolving Software And Hardware Incompatibilities

      WARNING: Dell's Disk Monitoring System has detected that drive [0/1] on the [primary/secondary] EIDE controller is operating outside of normal specifications. It is advisable to immediately back up your data and replace your hard drive by calling your support desk or Dell  —...
  • Page 216   3. Click Hardware Troubleshooter in the Search Results list.   4. In the Hardware Troubleshooter list, click I need to resolve a hardware conflict on my computer, and click Next. Back to Contents Page  ...
  • Page 217: Warranty

    User's Guide Dell Inc. ("Dell") manufactures its hardware products from parts and components that are new or equivalent to new in accordance with industry-standard practices. For information about the Dell warranty for your computer, see the Product Information Guide or separate paper warranty document that shipped with your computer.

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