IBM RS/6000 7024 E Series, Руководство по обслуживанию, Страница: 55 / 162

Step 1540-6
One of the FRUs remaining in the system unit is defective.
To test each FRU, exchange the FRUs that have not already been exchanged in the
following order:
Ÿ
System board
Ÿ
Power supply.
The system is working correctly if it beeps twice (one short, and a minute or more
later, one long).
1. Turn the power off.
2. Exchange one of the FRUs in the list.
3. Turn the power on.
Did the system beep twice?
NO Reinstall the original FRU.
Repeat this step until the defective FRU is identified or all the FRUs have
been exchanged.
If the symptom did not change and all the FRUs have been exchanged,
call your service support person for assistance.
If the symptom has changed, check for loose cards, cables, and obvious
problems. If you do not find a problem, return to “Step 1540-1” on
page 2-19 in this MAP, and follow the instructions for the new symptom.
YES Go to "Map 0410: Repair Checkout" in the IBM RS/6000 Diagnostic
Information for Multiple Bus Systems.
Chapter 2. Maintenance Analysis Procedures
2-23