Step 1540-8 - IBM RS/6000 44P 270 Service Manual

Step 1540-8

One of the FRUs remaining in the system unit is defective.
1. Turn off the power and remove the power cable.
2. Exchange the FRUs in the following order:
a. Memory card
b. System board
c. I/O board (see note 4 on page 27).
d. Power supply.
3. Plug in the power cable (and wait for OK on the operator panel display).
4. Turn on the power.
Does the system stop with code E1F2, E1F3, STBY or 4BA00830 displayed on the
operator panel?
NO
YES
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Service Guide
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
service support 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 51 in
this MAP, and follow the instructions for the new symptom.
Go to "MAP 410: Repair Checkout" in the RS/6000 and Eserver pSeries
Diagnostics Information for Multiple Bus Systems.