HP 8000 Technical Reference Guide: HP Compaq 8000 Elite Series Business Deskto - Page 88

Boot Error Codes, Table 8-1 - beep codes

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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. 8.3.4 Boot 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

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8-4
www.hp.com
Technical Reference Guide
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.
8.3.4 Boot 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.
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.
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.
Bli
nks 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.