Compaq AP500 manual Solutions for Power Problems, 8Diagnostic Tools, Possible Solution

4-8Diagnostic Tools

Power Problems

This section identifies some quick checks for power-related problems.

Table 4-2

Solutions for Power Problems

Problem

Computer will not turn on.

System will not boot.

Possible Solution

Be sure the workstation is connected to a working grounded AC outlet.

Be sure the processor(s) and terminator board are properly seated.

Check to see if cables to the external power source are unplugged. Be sure cables connecting the workstation and the external source are plugged in properly. Be sure cables from the workstation’s power supply are properly plugged in to the system board.

A PCI or ISA card that has been installed is not seated properly or is defective. Be sure that the card is fully inserted, or remove the PCI or ISA card that was just installed.

If the LED is a steady amber color, reseat the I/O bracket assembly (expansion board assembly).

Computer does not automatically The real-time clock (RTC) battery may need to be replaced. display the date and time.

Computer powered off	The maximum safe unit temperature may have been exceeded. Turn off the unit and allow
automatically.	it to cool.
	ACPI may be the cause. Unplug the unit from AC power and wait 10 seconds. Plug unit
	back in and restore power.