IBM RS/6000 7043 43P Series Service Manual page 84

Step 1540B-4
No failure was detected with this configuration.
1. Turn the power off.
2. Install a pair memory modules.
3. Turn the power on.
Does the operator panel stabilize for more than 60 seconds with code FDC,
FF2, FF3, or F4D displayed, or is one of these codes displayed immediately
before the system unit attempts to restart?
NO Go to "Step 1540B-5."
YES Repeat this step until all the memory modules are installed and tested.
After all the memory modules are installed and tested, turn the power to
off.
Go to "Step 1540B-7" on page 2-44.
Step 1540B-5
The failure may be caused by the last pair of memory modules installed. To isolate
the failing FRU, do the following:
1. Turn the power off.
2. Exchange the last memory module pair installed.
3. Turn the power on.
Does the operator panel stabilize for more than 60 seconds with code FDC,
FF2, FF3, or F4D displayed, or is one of these codes displayed immediately
before the system unit attempts to restart?
NO Go to "Step 1540B-6" on page 2-43.
YES Go to "Map 0410: Repair Checkout" in the Diagnostics Information for
Multiple Bus Systems.
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7043 43P Series Service Guide