The advanced diagnostic tests are intendedonly to test IBM products.
Hard Disk Drive | Replacement | Strategy: |
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Always | try to | run | a | format | before | replacing a har | |
disk | drive. |
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Warning: | The | drive | startup | sequence | in the | computer | |
you are servicing might have been changed. Be extremely careful during write operations such as copying, saving, or formatting. Data or programs can be overwritten if you select an incorrect drive.
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. The cause of th first error code can result in false error codes being displayed. If no error code is displayed, see if the e symptom is listed in the
How | to | Read | POST | Error | Messages |
POST | error | messages | are | displayed on the screen as | |
three, four, | five, or | eight digits. The error messages tha | |||
can be displayed as shorter POST messages are highlighted in this index. Some digits will represent different information for SCSI errors versus
The following example shows which digits display the shorter POST error messages and also defines the SCSI information in an
| Shorter POST Messages |
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+ ð + | ð + ð + ð + ð + ð + ð + ð + | ||||||
,3333"3333"3333"3333"3333"3333"3333"33332 | |||||||
+ | + | + | + | + | + | + | + |
Reserved | + | + | + | + | + | + | Size (SCSI) |
| ,3333"33332 | + | + | Slot Number (SCSI) | |||
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| Device Code | + | Logical Unit Number (SCSI) | |||
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| ID (SCSI) |
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All SCSI devices are set to a different SCSI ID. Duplicate SCSI ID settings can generate a false error message. Use the SCSI ID to determine whether the error message is coming from an internal or an external device.
6 IBM Mobile Systems HMM