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]
Another possible cause for errors is the external device. Use the documentation that came with the
peripheral to troubleshoot it and confirm that it is working properly. (Most printers have a self-test.)
After you eliminate incorrect system configuration information settings, peripheral malfunctions, and software
errors as potential causes of port problems, you can run the subtests in the
Parallel Ports Test Group
to
check your hardware. Although the following symptoms can be caused by faulty peripherals or software
errors, they might also suggest a port problem:
If a peripheral works intermittently or produces intermittent errors, the port may be faulty.
If the computer displays an error message that is related to the external device connected to a port, but
corrections to the device do not resolve the error, run the appropriate subtest in the
Parallel Ports Test
Group
.
If your software and the Dell Diagnostics do not recognize that you have a parallel port, you should
check the
Parallel Port
category in the
System Setup program
, and if necessary, run the appropriate
subtest in the
Parallel Ports Test Group
.
SCSI Devices Test Group
The subtests in the
SCSI Devices Test Group
check the functionality of up to four SCSI host adapters and
all the SCSI devices attached to them.
NOTES: Before conducting these subtests on CD-ROM drives, insert a CD with audio and data
tracks (such as a multimedia CD) into each CD-ROM drive. All of the subtests, except for the
Audio
Output Test
, require a CD with data tracks. The
Audio Output Test
requires a CD with audio tracks.
If a CD-ROM drive is empty or if it contains a CD that does not have the required data or audio tracks
(depending on the subtest[s] being conducted), the subtest(s) will fail.
The seven subtests in the
SCSI Devices Test Group
confirm the following drive functions:
Internal Diagnostic
Causes the device to run its internal self-test.
Seek Test
Checks the device’s ability to search for a specified track on the device and to position its
read/write heads to all tracks.
Read Test
Positions the read/write heads at each block of the device for reading data and verifies that all
tracks on the device can be read correctly.
Write Test
Positions the read/write heads at each block of the device and verifies that all tracks on the
device can be written to correctly.
Audio Output Test
