Troubleshooting Without Diagnostics

Solving Minor Problems

Problem

 

Possible Solution

 

 

Computer will not turn on.

1. Ensure that the computer is properly connected to an

 

 

external power source and the wall outlet is active.

 

2.

A PCI or ISA card that has been installed is defective.

 

 

Remove any expansion card that was just installed.

 

3.

Reseat drive power, data, and power supply cables.

 

4.

Disconnect all drive cables and reboot. Add devices

 

 

back one at a time to isolate problem.

Computer appears locked up and

Software control of the power button may not be functional.

won’t turn off when the power button is

Press and hold the button for four seconds, then release. This

pressed.

invokes the hardware override for the power button.

 

 

Computer date and time display is

First, reset the date and time under Control Panel. If the

incorrect.

problem persists, the real-time clock (RTC) battery may need

 

to be replaced. Refer to Section 9.1 in this guide. When

 

booting from a network, the PC clock may be reset to that of

 

the server. The PC clock may also change when using other

 

services through the server.

 

 

 

Computer powered off automatically.

1.

The unit temperature was exceeded because the unit is

 

 

in an exceedingly hot environment or the fan is blocked.

 

 

Let the unit cool down.

 

2.

The fan may not be functioning correctly or the air vents

 

 

are blocked.

 

3. The unit temperature was exceeded because the

 

 

computer was functioning with the cover or side panel

 

 

removed. Replace cover or side panel, and let the

 

 

computer cool down.

 

4.

The unit temperature was exceeded because the air

 

 

baffle is not properly installed to direct air flow over the

 

 

processor.

 

 

Insufficient power to the components.

Ensure that both power supply cables are connected to the

 

system board (on some workstations).

 

 

Computer appears to pause

Network driver is loaded and no network connection is

periodically

established. Establish a network connection, or use

 

Computer Setup or Windows Device Manager to disable

 

the network controller.

Cannot remove computer cover or side panel.

1.Smart Lock, featured on some computers, is locked. Unlock the Smart Cover Lock using Computer Setup.

2.The Smart Cover FailSafe Key, a device for manually disabling the Smart Cover Lock, is available from Compaq. You need the FailSafe Key in cases of forgotten password, power loss, or computer malfunction.

Computer does not boot up and power Ensure that the riser board is properly seated. and hard drive LEDs are blinking.

 

F–2

Service Reference Guide

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Image 164
HP xw6000 manual Solving Minor Problems, Problem Possible Solution