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Table 2-2 Printer port LED resume mode error status
Error status
F1H
RAM BIOS error.
F2H
The system has optional ROM, or optional card (CGA, MDA).
F5H
Main memory checksum error.
F6H
Video RAM checksum error.
F7H
Extended memory checksum error.
Procedure 4
Diagnostic Test Program Execution Check
Execute the following tests from the Diagnostic Test Menu. Refer to chapter 3, Tests and
Diagnostics , for more information on how to perform these tests.
1.
System test
2.
Memory test
3.
Printer test
4.
ASYNC test
5.
Real Timer test
6.
PCMCIA test
If an error is detected during these tests, go to Procedure 5 .
Procedure 5
Replacement Check
The system board or the HDD I/F board may be damaged. Disassemble the computer follow-
ing the steps described in chapter 4, Replacement Procedures , and perform the following
checks:
Check 1
Replace the system board with a new one. Refer to chapter 4 for instructions on
how to remove and replace the system board.
Check 2
Replace the HDD I/F board with a new one. Refer to chapter 4 for instructions on
how to remove and replace the sound board.
2-12
Meaning of status
100CS
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Troubleshooting
