Dell Inspiron 7000 Dell Inspiron 7000 Reference and Troubleshooting Guide - Page 103

Serial Port, Infrared Port, System Devices

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Seek Test Checks the drive's ability to search for a specified track on the drive and to position the read/write heads of the drive to all tracks. Read Test Positions the read/write heads at each cylinder of the drive and verifies that all tracks on the drive can be read correctly. Verify Test Similar to the Read Test, expect that no data is written to the disk. Use this test to quickly scan the disk. Write Test Positions the read/write heads at each cylinder of the drive and verifies that all tracks on the drive can be written to correctly. Media Eject Test Checks the CD-ROM or DVD-ROM drive's ability to eject the tray. Audio Test Causes the CD-ROM or DVD-ROM drive to begin playing the first audio track on an audio CD. (To determine if the test passed, listen to the audio output of the drive.) NOTE: The Audio Test does not run automatically as part of the IDE (ATA/ATAPI) Devices test group; you must select the subtest individually. The subtests in the Serial/Infrared Ports test group check the computer's interface with external devices (such as a serial mouse or a printer). The subtests in this test group are not intended as a diagnostic test for the external device itself. It may not be immediately evident whether the port or the external device is faulty. In both cases, the external device (such as a serial mouse or a printer) might behave erratically or not operate at all. Eliminate incorrect system configuration information settings, peripheral malfunctions, and software errors as potential causes of infrared (IR) port problems, before you run the subtests in the Serial/Infrared Port test group to check your hardware. If the diagnostics do not recognize the computer's serial or infrared port, check the Serial Port or Infrared Port option in the System Devices menu of the Setup program to see if the port has been disabled. (See Chapter 2, "Software Features," for information on using the Setup program.) The subtests in the Serial/Infrared Ports test group cannot test a port unless it is enabled. Running the Dell Diagnostics 4-23

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Running the Dell Diagnostics
4-23
²
Seek Test
Checks the drive’s ability to search for a specified track on the drive and to posi-
tion the read/write heads of the drive to all tracks.
²
Read Test
Positions the read/write heads at each cylinder of the drive and verifies that all
tracks on the drive can be read correctly.
²
Verify Test
Similar to the Read Test, expect that no data is written to the disk. Use this test
to quickly scan the disk.
²
Write Test
Positions the read/write heads at each cylinder of the drive and verifies that all
tracks on the drive can be written to correctly.
²
Media Eject Test
Checks the CD-ROM or DVD-ROM drive’s ability to eject the tray.
²
Audio Test
Causes the CD-ROM or DVD-ROM drive to begin playing the first audio track on
an audio CD. (To determine if the test passed, listen to the audio output of the
drive.)
NOTE: The Audio Test does not run automatically as part of the IDE (ATA/ATAPI)
Devices test group; you must select the subtest individually.
6HULDO½,QIUDUHG±3RUWV±7HVW±*URXS±
The subtests in the Serial/Infrared Ports test group check the computer’s interface
with external devices (such as a serial mouse or a printer). The subtests in this test
group are not intended as a diagnostic test for the external device itself.
:K\±5XQ±D±6HULDO½,QIUDUHG±3RUWV±7HVW"
It may not be immediately evident whether the port or the external device is faulty. In
both cases, the external device (such as a serial mouse or a printer) might behave
erratically or not operate at all. Eliminate incorrect system configuration information
settings, peripheral malfunctions, and software errors as potential causes of infrared
(IR) port problems, before you run the subtests in the Serial/Infrared Port test group to
check your hardware.
If the diagnostics do not recognize the computer’s serial or infrared port, check the
Serial Port
or
Infrared Port
option in the
System Devices
menu of the Setup pro-
gram to see if the port has been disabled. (See Chapter 2, “Software Features,” for
information on using the Setup program.) The subtests in the Serial/Infrared Ports test
group cannot test a port unless it is enabled.