F-2 Troubleshooting Without Diagnostics
Solving Minor Problems
Table F-1
Solutions for Minor Problems
Problem Possible Solution
Computer will not turn on. Ensure that the computer is properly connected to an external
power source.
A PCI or ISA card that has been installed is defective.
Remove any adapter card that was just installed.
Computer appears locked up and won’t
turn off when the power button is
pressed.
Software control of the power button may not be functional.
Press and hold the button for four seconds, then release. This
invokes the hardware override for the power button.
Computer date and time display is
incorrect.
First reset the date and time under Control Panel. If the
problem persists, the real-time clock (RTC) battery may need
to be replaced. See Chapter 5 for replacement procedures.
Computer powered off automatically. The unit temperature was exceeded because the unit is in an
exceedingly hot environment. Let it cool down.
The fan may be blocked.
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
before turning power back on.
Computer appears to pause periodically. Network driver is loaded and no network connection is
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.
Smart Lock, featured on some computers, is locked. Unlock
the Smart Cover Lock using Computer Setup.
The Smart Cover FailSafe Key, a device for manually
disabling the Smart Cover Lock, is available from Compaq.
You’ll need the FailSafe Key in cases of forgotten password,
power loss, or computer malfunction.
Computer does not boot up and power
and hard drive LEDs are blinking
Ensure that the riser board is properly seated .
Computer does not boot up and Num
Lock LED is blinking; you may hear one
short and two long beeps
DIMMs may be improperly installed or may be bad.
The Caps Lock LED is flashing; you may
hear one long and two short beeps.
The video controller is not present or is incorrectly initialized.
Following the directions in Chapter 6, clear configuration
memory. If a video board has been added, remove and reseat
it.
Computer does not boot up and the
Scroll Lock LED is flashing; you may
hear two long and one short beeps.
System board hardware failure (prior to video). Replace
system board.
✎
If the standard keyboard has been replaced with a Universal Serial Bus keyboard,
you will hear the beep sequences mentioned above but will not see the flashing
lights.
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