System-diagnostic lightsBattery-status lightIndicates 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 bya 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 lightsBlinking patternProblem descriptionAmber White1 1 TPM detection failure1 2 Unrecoverable SPI Flash Failure1 3 Short in hinge cable tripped OCP11 4 Short in hinge cable tripped OCP21 5 EC unable to program i-Fuse1 6 Generic catch-all for ungraceful EC codeflow errors1 7 Non-RPMC Flash on Boot Guard fusedsystem2 1 CPU failure2 2 System board failure (included BIOScorruption or ROM error)2 3 No memory/RAM detected2 4 Memory/RAM failure2 5 Invalid memory installed2 6 System board/Chipset Error2 7 LCD failure (SBIOS message)2 8 LCD failure (EC detection of power railfailure)3 1 CMOS battery failure3 2 PCI or Video card/chip failure3 3 BIOS recovery image not found3 4 BIOS recovery image found but invalid3 5 Power rail failure3 6 Flash corruption detected by SBIOS.Troubleshooting 99