IBM RS/6000 7043 43P Series, Service Manual, Page: 68 / 273

Step 1540A-5
The failure may be caused by the last memory module installed. To isolate the failing
FRU, do the following:
1. Turn the power off.
2. Exchange the last memory module installed.
3. Turn the power on.
Does the operator panel do one of the following:
Stop with any code other than
– FDC, FF2, FF3, or F4D (Model 140)
– E1DC, E1F2, E1F3, E1F7, or E14D (Model 150)
Alternate between
– FFD and any other code (Model 140)
– E1FD and any other code (Model 150)
NO Go to "Map 0410: Repair Checkout" in the Diagnostics Information for
Multiple Bus Systems.
YES Go to “Step 1540A-6” on page 2-27.
2-26
7043 43P Series Service Guide