Pre-Boot Diagnostics Error Codes - HP Kayak xu700 Technical Reference Manual

Test
Presence of either a processor or processor
terminator
Control of some voltages: 12V, 3.3V, 1.8V, 2.5V
Check the hardware monitoring.
Check thermal sensor.
Check thermal sensor.
The following table shows the test sequence carried out, the type of error
message, and the action to take.
Error Code
CPU Socket
Power Supply
No HW Monitoring
Therm. Sensor 90
Therm. Sensor 92

Pre-boot Diagnostics Error Codes

When a failure occurs prior to operating system loading, the PC emits a
distinctive modulated sound (repeated three times), followed by a series of
beeps. These beeps identify the part that needs troubleshooting or
replacement.
Number
of beeps
1 Absent or incorrectly connected processor.
2 Power supply is in protected mode.
3 Memory modules not present, incompatible or not functioning.
4 Video controller failure.
5 PnP/PCI initialization failure.
6 Corrupted BIOS. You need to activate crisis recovery procedure.
7 System board failure.
MaxiLife Test Sequence and Error Messages
Beep Codes
1 Check that the processor(s), processor
terminator are correctly installed.
2 Check the power supply cable and
connectors, and processor.
System board problem.
System board problem.
System board problem.
Problem
6 Tests and Error Messages
Action to Take
99