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
Blinking pattern
Problem descriptionAmber White
1 1 TPM detection failure
1 2 Unrecoverable SPI Flash Failure
1 3 Short in hinge cable tripped OCP1
1 4 Short in hinge cable tripped OCP2
1 5 EC unable to program i-Fuse
1 6 Generic catch-all for ungraceful EC code
flow errors
1 7
Non-RPMC Flash on Boot Guard fused
system
2 1 CPU failure
2 2 System board failure (included BIOS
corruption or ROM error)
2 3 No memory/RAM detected
2 4 Memory/RAM failure
2 5 Invalid memory installed
2 6 System board/Chipset Error
2 7 LCD failure (SBIOS message)
2 8 LCD failure (EC detection of power rail
failure)
3 1 CMOS battery failure
3 2 PCI or Video card/chip failure
3 3 BIOS recovery image not found
3 4 BIOS recovery image found but invalid
3 5 Power rail failure
3 6 Flash corruption detected by SBIOS.
Troubleshooting 99
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