Dell OptiPlex E1 - Manual (Page 37)

Basic Troubleshooting 2-7
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The tests continue to run until an error is encountered. When an error is
reported, you have the option of stopping or continuing the tests. When
the tests are completed or stopped, the total number of errors is reported;
there is no error log.
The server-based diagnostics consists of the following test groups:
‡
Coprocessor Tests — Checks the math coprocessor’s numerical calculation
and error-handling abilities
‡
CMOS Confidence Test — Checks the NVRAM for accessibility and reliabil-
ity of data storage
‡
DMA Controller Test — Checks correct operation of the DMA controller
‡
Timers Test — Checks the timers used by the microprocessor
‡
RTC Test — Confirms the functionality and accuracy of the computer’s RTC
‡
PIC Test — Generates an interrupt on each IRQ line to verify interrupt con-
troller operation
‡
Speaker Test — Checks the functionality of the speaker by generating
tones
‡
Video Tests — Verifies proper operation of the video controller and the
video control circuitry
‡
USB1 Tests — Checks the USB interface registers and the USB controller
‡
Serial Port 1 Tests — Checks the computer’s interface with external
devices connected through serial port 1
‡
Serial Port 2 Tests — Checks the computer’s interface with external
devices connected through serial port 2
‡
Parallel Port 1 Test — Checks several internal functions of the parallel port
‡
Mouse Test — Checks the functionality of the mouse controller and the
operation of the mouse keys
‡
Keyboard Tests — Verifies the correct operation of the keyboard and the
keyboard controller chip
‡
Disk 0 Tests — Checks the hard-disk drive controller and the storage capa-
bility 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.
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The OptiPlex E1 system uses either diskette-based or server-based diagnos-
tics. These tests aid in troubleshooting all major components of the system.
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