Dell OptiPlex GX1, Руководство по обслуживанию

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suspected hardware problem, run the hard-disk–based diagnostics by follow-
ing these steps:
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If you wait too long and the operating system begins to load into memory,
let the system complete the load operation; then shut down the system
and try again.
Starting the diagnostics causes the Dell logo to appear on the monitor
screen, followed by a message indicating that the diagnostics is loading.
Before the diagnostics loads, a program tests the portion of main memory
(RAM) required for loading the diagnostics. If a main memory error is
detected, a message indicates which DIMM has failed. If no errors are
found in main memory, the diagnostics loads and the Diagnostics Menu
appears.
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This menu lets you choose the following options or exit to the MS-DOS
prompt:
‡
Run Quick Tests — Runs selected tests from all test groups to quickly
locate a failure or to indicate where further testing is needed to isolate
a failure
‡
Run All Tests — Runs all tests for a thorough test of the system
‡
Run Specific Tests — Tests a particular area or subsystem
If the Diagnostics Menu does not appear, check with the network adminis-
trator to determine if the service partition was removed from the hard-disk
drive.
If it is not possible to run the hard-disk–based diagnostics and if you
are prepared to remove the computer cover, see “Internal Visual Inspec-
tion” found earlier in this chapter. Otherwise, see “Getting Help” found
later in this chapter.
The hard-disk–based diagnostics consists of the following test groups:
‡
RAM Tests — Check all the directly addressable RAM
‡
System Set Tests — Check the computer’s system board components and
verify their related functions
‡
Video Tests — Verify proper operation of the video controller and the video
control circuitry
‡
Keyboard Tests — Verify the correct operation of the keyboard and the key-
board controller chip
‡
Mouse Test — Checks the functionality of the mouse controller and the
operation of the mouse keys