Step 1540-6; Step 1540-7 - IBM RS/6000 44P 270 Service Manual

Step 1540-6

The failure might be caused by the last pair of memory modules installed or the
memory card. To isolate the failing FRU, do the following:
1. Turn off the power and remove the power cable.
2. Exchange the last memory module pair installed.
3. Reinstall the power cable.
4. Turn on the power.
Does the system stop with code E1F2, E1F3, STBY or 4BA00830 displayed on the
operator panel?
NO
YES

Step 1540-7

One or both of the memory modules that you exchanged in the previous step might be
defective. To isolate the failing memory module, do the following:
1. Turn off the power and remove the power cable.
2. Reinstall one of the memory modules you installed in the previous step.
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
Go to "Step 1540-8" on page 56.
Go to "Step 1540-7".
Replace the memory module.
If you have not tested both memory modules, repeat this step with the second
memory module you exchanged in the previous step.
If the symptom did not change and both memory modules have been
exchanged, go to "Step 1540-8" on page 56.
Repeat this step with the second memory module you exchanged in the
previous step.
If both memory modules have been tested, go to "MAP 410: Repair Checkout"
in the RS/6000 and Eserver pSeries Diagnostics Information for Multiple Bus
Systems.
Chapter 3. Maintenance Analysis Procedures
55