Compaq Prolinea Family Maintenance & Serice Manual page 46

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Cursor will not move using
the arrow keys on the
numeric keypad.
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Hard Drive Problems
This section identifies some quick checks for hard drive related problems.
IMPORTANT: The IntelliSafe hard drive stores pre-failure information on
certain parameters during drive operation. At some point, this
information indicates that the drive should fail sometime in
the future even though it is currently working fine. When you
run diagnostics, if there is any pre-failure information stored
on the drive, the computer will fail the hard drive diagnostics
test. Proof of this test failure is required when returning a
hard drive to Compaq as a failed hard drive.
The information provided by the diagnostics test includes: error code,
system serial number, drive serial number, drive model, and drive firmware
revision. Specific details of the drive failure are not included.
When you run the diagnostics, the test results are stored in a log. After
completing the test, you can print this log to a local printer or save it
to a file. Alternatively, before running the test, you can configure the
test options to send the results to a local printer or file.
Solutions for some typical hard drive problems are presented in
Table 2-19.
Table 2-19. Solutions for Hard Drive Problems
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Problem
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Hard drive error occurs.
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Disk transaction problem.
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obstruct air flow.
The Num Lock key is on. Press the Num Lock
key. The Num Lock light should not be on
when you want to use the arrow keys.
Possible Solution
Hard disk has bad sectors or has failed.
Reformat the hard disk.
Either the directory structure is bad or
there is a problem with a file.
At the C:\> prompt, run CHKDSK to check for
problems. If problems exist, run CHKDSK /F
to correct the problems. If a large number
of lost allocation units is found, run the
MS-DOS defragmentation program DEFRAG. See
the MICROSOFT WINDOWS & MS-DOS 6.2 USER'S
GUIDE for more information.
Alternatively, at the C:\> prompt, run
SCANDISK to check for problems. If problems
exist, run SCANDISK/AUTOFIX to correct the
problems. If a large number of lost
allocation units is found, run the MS-DOS
defragmentation program DEFRAG. Type HELP
SCANDISK for more information.