Compaq AP550 Compaq Professional Workstation AP550 Maintenance & Service G - Page 104

Power Problems, Table 4-2, Solutions for Power Problems

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4-10 Compaq Professional Workstation AP550 Maintenance and Service Guide Power Problems Table 4-2 Solutions for Power Problems Problem Computer will not turn on. Computer does not automatically display the date and time. Computer powered off automatically. Insufficient power to the components. Possible Solution Be sure the workstation is connected to a grounded AC outlet. Be sure cables from the workstation's power supply are plugged in properly. A PCI board that has been installed is not seated properly or is defective. Be sure that the board is fully inserted, or remove the PCI board that was just installed. The real-time clock (RTC) battery may need to be replaced. The unit temperature may have been exceeded. Check the fan for function and blockage. Both power supply cables may not be connected to the system board. CAUTION: If both power cables are not properly connected to the system board, damage to the system board could result.

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4-10
Compaq Professional Workstation AP550 Maintenance and Service Guide
Power Problems
Table 4-2
Solutions for Power Problems
Problem
Possible Solution
Computer will not turn on.
Be sure the workstation is connected to a grounded
AC outlet.
Be sure cables from the workstation’s power supply
are plugged in properly.
A PCI board that has been installed is not seated
properly or is defective. Be sure that the board is fully
inserted, or remove the PCI board that was just
installed.
Computer does not automatically display the date and
time.
The real-time clock (RTC) battery may need to be
replaced.
Computer powered off automatically.
The unit temperature may have been exceeded.
Check the fan for function and blockage.
Insufficient power to the components.
Both power supply cables may not be connected to
the system board.
CAUTION:
If both power cables are not properly connected to the system board, damage to the
system board could result.