System-diagnostic lightsPower and battery-status lightThe power and battery status light indicates the power and battery status of the computer. These are the power states:Solid white:Power adapter is connected and the battery has more than 5% charge.Amber:Computer is running on battery and the battery has less than 5% charge.Off:● Power adapter is connected, and the battery is fully charged.● Computer is running on battery, and the battery has more than 5% charge.● Computer is in sleep state, hibernation, or turned off.The power and battery-status light may blink amber or white according to pre-defined "beep codes" indicating various failures.For example, the power and battery-status light blinks amber two times followed by a pause, and then blinks white three timesfollowed 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.NOTE: The following diagnostic light codes and recommended solutions are intended for Dell service technicians totroubleshoot problems. You should only perform troubleshooting and repairs as authorized or directed by the Dell technicalassistance team. Damage due to servicing that is not authorized by Dell is not covered by your warranty.Table 10. Diagnostic-light LED codesDiagnostic light codes(Amber,White) Problem description1,1 M-BIST: TPM1,2 M-BIST: SPI flash1,3 Hinge cable OCP11,4 Hinge cable OCP21,5 i-Fuse failure1,6 EC internal failure2,1 Processor failure2,2 System board: BIOS or ROM (Read-OnlyMemory) failure2,3 No memory or RAM (Random-Access Memory)detected2,4 Memory or RAM (Random-Access Memory)failure2,5 Invalid memory installed2,6 System-board or chipset error2,7 Display failure - SBIOS message2,8 Display failure - EC detection of power railfailure3,1 Coin-cell battery failure3,2 PCI, video card/chip failure3,3 Recovery image not found3,4 Recovery image found but invalid3,5 Power-rail failure3,6 System BIOS Flash incomplete3,7 ME errorTroubleshooting 69