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System-diagnostic lights
Battery-status light
Indicates the power and battery-charge status.
Solid white — Power adapter is connected and the battery has more than 5 percent charge.
Amber — Computer is running on battery and the battery has less than 5 percent charge.
Off
● Power adapter is connected, and the battery is fully charged.
● Computer is running on battery, and the battery has more than 5 percent charge.
● Computer is in sleep state, hibernation, or turned off.
The battery-status light blinks amber along with beep codes indicating failures.
For example, the battery-status light blinks amber two times followed by a pause, and then blinks white three times followed by
a pause. This 2,3 pattern continues until the computer is turned off indicating no memory or RAM is detected.
The following table shows different power and battery-status light patterns and associated problems.
Table 45. System diagnostic lights
Amber
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
3
3
3
3
3
3
106
Troubleshooting
Blinking pattern
White
1
2
3
4
5
6
7
1
2
3
4
5
6
7
8
1
2
3
4
5
6
Problem description
TPM detection failure
Unrecoverable SPI Flash Failure
Short in hinge cable tripped OCP1
Short in hinge cable tripped OCP2
EC unable to program i-Fuse
Generic catch-all for ungraceful EC code
flow errors
Non-RPMC Flash on Boot Guard fused
system
CPU failure
System board failure (included BIOS
corruption or ROM error)
No memory/RAM detected
Memory/RAM failure
Invalid memory installed
System board/Chipset Error
LCD failure (SBIOS message)
LCD failure (EC detection of power rail
failure)
CMOS battery failure
PCI or Video card/chip failure
BIOS recovery image not found
BIOS recovery image found but invalid
Power rail failure
Flash corruption detected by SBIOS.
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