Oracle Sun Server X4-4, Service Manual

Page: 133 / 292

Identify a Faulty DIMM
Servicing CRU Components 133
-or-
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“Remove a DIMM” on page 134
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“Install a DIMM” on page 136
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“Replace the Motherboard (FRU)” on page 219
Identify a Faulty DIMM
When servicing the components in this section, unplug the AC power cords and use ESD
protection.
To identify a faulty DIMM, use the DIMM Fault Remind circuitry that is located on the
memory riser (MR) card.
Note -
Once power is removed from the server, you have 10 minutes to use the DIMM fault
remind test cirduit.
Before You Begin ■
For serviceability considerations, see “Component Serviceability” on page 66 .
■
For DIMM designation information, see “Component Designations” on page 69 .
■
For reference information, see “Memory Riser Card and DIMM Reference” on page 141 .
1.
Use Oracle ILOM to identify the failed DIMM in the system. See “Troubleshoot
Hardware Faults” on page 35
Oracle ILOM can provide the memory riser card and DIMM designations for the failed DIMM.
2.
If Oracle ILOM is showing multiple DIMMs in a failed state, see “Troubleshooting
a Multi-DIMM Failure State” on page 146 .
3. Identify the memory riser card that contains the failed DIMM. See “Locate a
Failed Memory Riser Card, DIMM, or CPU” on page 81 .
4. Remove the MR card. See “Remove a Memory Riser Card” on page 131 .