Dell OptiPlex GX1 - Manual (Page 54)

Dell Diagnostics: Dell OptiPlex GX1 Small-Form-Factor System User's Guide
file:///C|/infodev/2013/eDoc/OpGX1/UG/diag.htm[2/21/2013 11:47:14 AM]
The following symptoms usually suggest a problem with a component or subassembly that warrants running
a System Set subtest:
A program is not running as usual, or a proven piece of software appears to malfunction and you
confirm that the software itself is not at fault. (You can confirm that the software is functioning properly
by moving it to another computer and running it there.)
An option card you previously accessed can no longer be accessed.
You get parity errors or page fault failures (any error message that contains the word parity or page
fault) at any time during operation. These errors are usually accompanied by a reference to an
address, which you should record on a copy of the
Diagnostics Checklist .
Correcting errors in the system configuration information in the System Setup program does not resolve
a problem.
The computer’s clock/calendar stops.
The speaker no longer functions. The problem could be a failure of the system timers as well as a
failure of the speaker itself. Run the System Timers Test, followed by the System Speaker Test.
If a peripheral device appears to malfunction, run the Interrupt Controllers Test.
A spreadsheet program or other type of mathematical application runs abnormally slow, generates
error messages concerning calculations or operations, runs incorrectly, or generates incorrect results,
or a proven piece of the program appears to malfunction and you confirm that the software itself is not
at fault. (You can confirm that the software is not at fault by moving the program to another computer
and running it there.)
The computer periodically locks up, especially at different places and times in different programs.
The computer halts in the middle of performing calculations or complex mathematical operations.
Video Test Group
The subtests in the Video Test Group verify the proper operation of the video controller and the video
control circuitry installed in your computer. These subtests check for the correct operation of the readable
registers in the video circuitry and the controller. They write, read, and verify data patterns in the cursor
registers of the controller. The Video Test Group also tests all the video memory and provides additional
subtests to test the color features of a color monitor.
The eight subtests in the Video Test Group confirm the following video functions:
Video Memory Test
Checks the read/write capability of video memory in various video modes.
Video Hardware Test
Checks the cursor registers and the horizontal and vertical retrace bit registers in the video
controller.