IBM ThinkPad T20, Руководство по техническому обслуживанию аппаратной части

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Hard-disk drive replacement strategy:
Always try to run a low-level format before replacing a
hard-disk drive.
Attention
The drive startup sequence in the computer 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. Whatever causes
the first error code may 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 Compatibility
3.5-inch 1.0MB Read and write
2.0MB Read and write
4.0MB Not compatible
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ThinkPad T20 HMM