Important service information
Strategy for replacing a hard-disk drive
Always try to run a low-level form at before replacing a
hard-disk drive.
A tte n tio n : The drive startup sequence in the com puter
you are servicing may have been changed. Be extremely
careful during write operations such as copying, saving, or
formatting. If you select an incorrect drive, data or
programs can be overwritten.
How to use error messages
Use the error codes displayed on the screen to diagnose
failures. If more than one error code is displayed, begin the
diagnosis with the first error code. W hatever causes the
first error code m ay also cause false error codes. If no
error code is displayed, see if the error symptom is listed
in the Symptom-to-FRU Index for the computer you are
servicing.
Diskette compatibility matrix
The compatibility of each of the drives with the diskettes
for it is as follows:
Diskette
drive
Diskette
capacity
C om patibility
3.5-inch 1.0 MB Read and write
2.0 MB Read and write
4.0 MB Not compatible
4 ThinkPad R40
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