Map 1240: Memory Problem Resolution - IBM RS/6000 7046 Service Manual

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MAP 1240: Memory Problem Resolution

Note: The firmware checkpoint that sent you here could be one of the following:
E122, E213, E214, E218, E220 or E3xx
Each of these checkpoints is referred to as a memory checkpoint in this MAP.
Purpose of this MAP
This MAP is used to troubleshoot a problem during the memory test when the
system stops at a memory checkpoint and no error code is displayed on the system
console.
General Memory Information
Be sure to unplug the power cable before removing or installing the memory modules
to avoid damage to them.
The memory modules do not need to be installed in pairs and can be installed in any
slot on the system board. There is no requirement that one slot be installed before
the other.
Refer to "Memory Modules" on page 7-26 for locations of the memory modules and
instructions on removing and installing modules.
Note: If the symptom changes while using this MAP, check for loose cards, cables,
and obvious problems. If you do not find a problem, go to "MAP 1540:
Minimum Configuration" on page 2-17.
Chapter 2. Maintenance Analysis Procedures (MAPs)
2-9