Step 1540-4; Step 1540-5 - IBM RS/6000 44P 270 Service Manual

Step 1540-4

No failure was detected with this configuration.
1. Turn off the power and remove the power cable.
2. Reinstall the second processor card.
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

Step 1540-5

No failure was detected with this configuration.
1. Turn off the power and remove the power cable.
2. Install a pair of memory modules.
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
54
Service Guide
One of the FRUs remaining in the system unit is defective.
In the following order, exchange the FRUs that have not been exchanged:
1. Processor card (last one installed)
2. System board
3. I/O board (See note 4 on page 27.)
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 changed, check for loose cards and obvious problems. If you
do not find a problem, return to "Step 1540-1" on page 51 and follow the
instructions for the new symptom.
Go to "Step 1540-5".
Go to "Step 1540-6" on page 55.
Repeat this step until all the memory modules are installed and tested.
After all the memory modules are installed and tested, record the positions of
the memory modules on the second memory card. Remove all of the memory
modules from the second memory card except one pair. Repeat this step with
the second memory card (if previously installed).
Go to "Step 1540-9" on page 57.