Table 20. Memory-card installation sequence for memory-mirroring configuration (continued)
DIMM quad installation
order
Memory-card connector
number DIMM connector numbers
Eighth 5 3 and 6
6 3 and 6
Ninth 1 2 and 7
2 2 and 7
Tenth 7 2 and 7
8 2 and 7
Eleventh 3 2 and 7
4 2 and 7
Twelfth 5 2 and 7
6 2 and 7
Thirteenth 1 4 and 5
2 4 and 5
Fourteenth 7 4 and 5
8 4 and 5
Fifteenth 3 4 and 5
4 4 and 5
Sixteenth 5 4 and 5
6 4 and 5
v If a problem with a DIMM is detected, light path diagnostics lights the
system-error LED on the front of the server, indicating that there is a problem
and guiding you to the defective DIMM. When this occurs, first identify the
defective DIMM; then, remove and replace the DIMM.
134 IBM System x3850 X5 and x3950 X5 Types 7145, 7146, 7143, and 7191: Problem Determination and Service Guide
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