Dell OptiPlex NX1 Manual de usuario descargar pdf (Pagina 59)

Basic Troubleshooting 2-7

 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 — Verify proper operation of the video controller and the video

control circuitry

 USB1 Tests — Check the USB interface registers and the USB controller

 Serial Port 1 Tests — Check the computer’s interface with external devices

connected through serial port 1

 Serial Port 2 Tests — Check 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 — Verify the correct operation of the keyboard and the key-

board controller chip

 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

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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

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