Dell OptiPlex NX1 - Manual (Page 59)

Basic Troubleshooting 2-7
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Timers Test — Checks the timers used by the microprocessor
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RTC Test — Confirms the functionality and accuracy of the computer’s RTC
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PIC Test — Generates an interrupt on each IRQ line to verify interrupt con-
troller operation
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Speaker Test — Checks the functionality of the speaker by generating
tones
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Video Tests — Verify proper operation of the video controller and the video
control circuitry
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USB1 Tests — Check the USB interface registers and the USB controller
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Serial Port 1 Tests — Check the computer’s interface with external devices
connected through serial port 1
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Serial Port 2 Tests — Check the computer’s interface with external devices
connected through serial port 2
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Parallel Port 1 Test — Checks several internal functions of the parallel port
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Mouse Test — Checks the functionality of the mouse controller and the
operation of the mouse keys
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Keyboard Tests — Verify the correct operation of the keyboard and the key-
board controller chip
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Disk 0 Tests — Check the hard-disk drive controller and the storage capabil-
ity of the hard-disk drive
For a complete description of the server-based diagnostics, see “Server-Based
Diagnostics” in the online
Network Administrator’s Guide.
+DUG'LVN
²
%DVHG'LDJQRVWLFV 2SWL3OH[1;
6\VWHPV2QO\
The hard-disk–based diagnostics contains tests that aid in troubleshooting all
major components of the system. If it is not possible to run the server-based
diagnostics or if the server-based diagnostics fails to reveal the source of a
suspected hardware problem, run the hard-disk–based diagnostics by follow-
ing these steps:
1. Turn on (or reboot) the system.
2. Press <Ctrl><Alt><F10> immediately after you see the following
message:
Press <Ctrl><Alt><Enter> to enter the System Setup
program.
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