IBM H Series Installation And Service Manual page 49

Step 1240-6
1. Turn the power off
2. Exchange the following FRUs in the order listed:
System board
Processor card(s)
3. Turn the power on
Does the system stop with a memory checkpoint displayed on the operator
panel?
NO Go to "Map 0410: Repair Checkout" in the Diagnostic Information for Mul-
tiple Bus Systems.
YES 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,
go to "MAP 1540: Minimum Configuration" on page 2-37.
Step 1240-7
1. Turn the power off.
2. Remove all installed memory modules from the memory card you tagged
"suspect bad". Record the position of the memory modules removed so that
when instructed to re-install them they can be installed in their original position.
3. Install one pair of memory modules.
4. Turn the power on.
Does the system stop with a memory checkpoint displayed on the operator
panel?
NO If there are no more memory modules to be installed reseating the
modules on the memory card has corrected the problem.
If there was more than one pair of memory modules on the memory card
go to "Step 1240-8" on page 2-16.
YES Go to "Step 1240-9" on page 2-16.
Chapter 2. Maintenance Analysis Procedures
2-15