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G5 5000 Service Manual

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System-diagnostic lights

The power-status light indicates the power status of the computer. These are the power states:

Solid white—Computer is in S0 state. This is the normal power state of the computer.

Blinking white—Computer is in a low-power state, S3. This does not indicate a fault.

Solid amber—Computer is experiencing a boot failure, including the power-supply unit.

Blinking amber—Computer is experiencing a boot failure but the power-supply unit is functioning correctly.

Off—Computer is in sleep state, hibernation mode, or turned off.

The power-status light may also blink amber or white according to predefined "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 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.

NOTE: The following diagnostic light codes and recommended solutions are intended for Dell service technicians to troubleshoot problems. You should only perform troubleshooting and repairs as authorized or directed by the Dell technical support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty.
Table 1. Diagnostic light codesDiagnostic light codes for component issues/failure in the product.
Diagnostic light codes (Amber, White) Problem description
1,2 Unrecoverable SPI Flash Failure
2,1 CPU configuration or CPU failure
2,2 System board: BIOS or Read-Only Memory (ROM) failure
2,3 No memory or Random-Access Memory (RAM) detected
2,4 Memory or Random-Access Memory (RAM) failure
2,5 Invalid memory installed
2,6 System board/Chipset Error/Clock failure/Gate A20 failure/Super I/O failure/Keyboard controller failure
3,1 CMOS battery failure
3,2 PCI of Video card/chip failure
3,3 BIOS Recovery 1: BIOS recovery image not found
3,4 BIOS Recovery 2: Recovery image found but invalid
3,5 Power Rail Failure: EC ran into power sequencing failure
3,6 Paid SPI Volume Error
3,7 Management Engine (ME) error. Timeout waiting on ME to reply to HECI message.
4,2 CPU Power cable connection issue

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