HP 8000 tower manual Boot Error Codes

System BIOS

The BIOS performs memory detection and configuration with the following steps:

1.Program the buffer strength control registers based on SPD data and the DIMM slots that are populated.

2.Determine the common CAS latency that can be supported by the DIMMs.

3.Determine the memory size for each DIMM and program the GMCH accordingly.

4.Enable refresh.

8.3.4Boot Error Codes

The BIOS provides visual and audible indications of a failed system boot by using the system’s power LED and the system board speaker. The error conditions are listed in the following table.

Table 8-1

Boot Error Codes

Visual (power LED)	Audible (speaker)	Meaning
Blinks red 2 times @ 1 Hz	2 beeps	Processor thermal shut down. Check air flow, fan
		operation, and CPU heat sink.
Blinks red 3 times @ 1 Hz	3 beeps	Processor not installed. Install or reseat CPU.
Blinks red 4 times @ 1 Hz	None	Power failure (power supply is overloaded). Check
		storage devices, expansion cards and/or system
		board (CPU power connector P3).
Blinks red 5 times @ 1 Hz	5 beeps	Pre-video memory error. Incompatible or
		incorrectly seated DIMM.
Blinks red 6 times @ 1 Hz	6 beeps	Pre-video graphics error. On system with
		integrated graphics, check/replace system board.
		On system with graphics card, check/replace
		graphics card.
Blinks red 7 times @ 1 Hz	7 beeps	PCA failure. Check/replace system board.
Blinks red 8 times @ 1 Hz	8 beeps	Invalid ROM (checksum error). Reflash ROM using
		CD or replace system board.
Blinks red 9 times @ 1 Hz	9 beeps	System powers on but fails to boot. Check power
		supply, CPU, system board.
Blinks red 10 times @ 1 Hz	10 beeps	Bad option card.

NOTE: Audible indications occur only for the five cycles of the error indication. Visual indications occur indefinitely until power is removed or until error is corrected.

8-4 www.hp.com Technical Reference Guide