IBM PS/2 N51 SX Hardware Maintenance Service page 10

topic 3.0 .
Notes:
a. If the system has an incorrect keyboard or numeric keypad
response, go to "Keyboard" in topic 6.0.
b. If the printer has incorrect responses, go to "Printer" in
topic 7.0.
c. If the external CRT display has problems such as jittering,
rolling, shifting, or being out-of-focus, go to "External
Display Self-Test" in topic 8.0.
2. Press Ctrl+A and run the system checkout.
IS THE LIST OF INSTALLED DEVICES CORRECT?
Yes No
¦ ¦
¦ +---+
¦ ¦009¦
¦ +---+
¦ Go to "Installed Devices List" in topic 2.0.
¦
+---+
¦010¦
+---+
- Run the diagnostic tests.
DID THE TEST IDENTIFY A FAILURE?
Note: If the test stops and you cannot continue, replace the last device
tested.
- or -
If any POST error code appears, go to"Symptom-to-FRU Index" in
topic 10.0 .
Yes No
¦ ¦
¦ +---+
¦ ¦011¦
¦ +---+
¦ You may have an intermittent problem:
¦ Check for damaged cables and connectors.
¦ Reseat all adapters, drives, and modules.
¦ Start an error log and run the tests multiple times.
¦ Check the power supply in use when the error is reported (see
¦ "Power Supply" in topic 5.0).
¦ Check "Symptom-to-FRU Index" in topic 10.0.
¦ the problem, go to "Undetermined Problem" in topic 3.0.
¦
+---+
¦012¦
+---+
Go to "Symptom-to-FRU Index" in topic 10.0.
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IBM PS/2 Model N51 SX HMS
How to Disable the Power-On Password
If this does not fix
¦ Copyright IBM Corp. 1991
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