Dell OptiPlex GX1 User Manual page 63

Dell Diagnostics: Dell OptiPlex GX1 Small-Form-Factor System User's Guide
Causes the CD-ROM drive to begin playing the first audio track on an audio CD. To determine
whether the test passed, listen to the audio output of the drive.
NOTE: To conduct the Audio Output Test, you must select it individually. It will not run as
part of the test group.
Eject Removable Media
Causes a CD-ROM drive to eject its CD or a SCSI tape drive to eject its tape cartridge.
Display Information
Displays a screen of information about each SCSI host adapter in the computer, the resources
allocated to each SCSI host adapter, and a list of target devices attached to the SCSI host
adapter.
Why Run a SCSI Devices Test?
If you check your SCSI hard-disk drive to determine the amount of available space, your operating system
will probably report problem areas. Problem areas on hard-disk drives are common, because most hard-disk
drives have a small amount of space that is not usable. The hard-disk drive keeps a record of this space so
that your computer will not attempt to use it. Identification of unusable disk space, unless it is an unusually
large amount (over 5 percent of the possible total), should not be regarded as a cause for testing the hard-
disk drive.
These are the most common symptoms that might prompt you to test a SCSI device:
A SCSI hard-disk drive fails during the boot routine.
Seek errors are reported by the operating system or application programs.
An error message appears on the screen stating that the computer cannot read from or write to a SCSI
device.
Data on a SCSI device is corrupted or lost; this problem may be intermittent. Once saved by a program,
files cannot be properly recalled.
Network Interface Test Group
The subtests in the Network Interface Test Group verify the basic operation of the network interface
controller (NIC). They test its internal functions, including read and write access to its registers and internal
transmit and receive (loopback) capability.
The subtests in the Network Interface Test Group confirm the following functions:
Registers Test
Writes patterns to the writable registers in the controller and reads the patterns back to verify
whether they are accessible and able to retain data. This subtest also tests interrupt generation
and register-specific functionality based on the type of controller.
Internal Loopback Test
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