Troubleshooting Without Diagnostics; Checklist For Solving Minor Problems - Compaq Deskpro EN Series Maintenance & Service Manual

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appendix

TROUBLESHOOTING WITHOUT DIAGNOSTICS

This section describes some simple, preliminary tests and guidelines for troubleshooting the
computer without using the diagnostics.

Checklist for Solving Minor Problems

If you encounter some minor problem with the computer or a software application, go through the
following checklist for possible solutions before running any of the diagnostic utilities:
„
Is the computer connected to a working power outlet?
„
Is the computer turned on and the power light illuminated?
„
Are all cables connected properly and seated?
„
Is the monitor turned on and the power light illuminated?
„
If the monitor is dim, turn up the brightness and contrast controls of the monitor.
„
Press and hold any key. If the system beeps, then the keyboard should be operating
correctly.
„
Are all of the necessary device drivers installed?
„
Have all printer drivers been installed for each application?
„
Was a nonbootable diskette loaded in the diskette drive at powerup?
„
Was a bootable compact disc in the CD-ROM drive at powerup?
„
Are all switch settings correct?
„
Have all jumper settings been set as instructed by the configuration utility?
„
Was Computer Setup run after installing options (memory, disk drives, expansion boards,
etc.) and before installing industry standard architecture (ISA) boards?
Power
Problem
Computer will not turn on.
Computer does not
automatically display the
date and time.
Possible Solution
1. Ensure that the computer is connected to a power source.
2. Cables to the external power source are unplugged. Ensure that
cables connecting the computer and the external source are plugged
in properly.
3. A PCI or ISA card that has been installed is defective. Remove any
adapter card that was just installed.
The real-time clock (RTC) battery may need to be replaced. See Chapter
5 for replacement procedures.
Compaq Deskpro EN Series, Small Form Factor and Net PC Models F-1