Oracle SPARC T8-1, Service Manual

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Locate a Faulty DIMM (Oracle ILOM)
3.
Unplug the power cords .
Once you remove power from the server, you must perform the next step within a few minutes
to ensure that the server retains enough power to light the DIMM fault LEDs.
4. Remove the appropriate memory riser .
To remove a DIMM from the motherboard, you must remove the memory riser above that
DIMM to enable access.
5. Locate the faulty DIMM on the motherboard or memory riser using the DIMM
fault LEDs.
6. Remove the faulty DIMM .
7.
Ensure the replacement DIMM has the same rank classification as the faulty
DIMM.
8. Install the replacement DIMM .
9. Install the memory riser that you removed.
10. Return the server to operation .
11.
Enable and verify the replacement DIMM.
Locate a Faulty DIMM (Oracle ILOM)
The Oracle ILOM
show faulty
command displays current faults, including DIMM failures.
1. Type
show faulty
at the Oracle ILOM prompt.
If a DIMM is faulty, the
show faulty
output is similar to this example.
-> show faulty
Target | Property | Value
--------------------+-------------------+-------------------
/SP/faultmgmt/0 | fru | /SYS/MB/CM/CMP/BOB21/CH0
/SP/faultmgmt/0 | timestamp | Dec 21 16:40:56
/SP/faultmgmt/0/ | timestamp | Dec 21 16:40:56 faults/0
/SP/faultmgmt/0/ | sp_detected_fault | /SYS/MB/CM/CMP/BOB21/CH0
faults/0 | | Forced fail(POST)
Servicing Memory Risers and DIMMs 89