SPARC T5-8 Server Service Manual

Determine Which DIMM Is Faulty (LEDs)

1. Check that the Service Required LED is lit on the front of the server.

   See Front Panel Controls and LEDs.

2. Check that the Service Required LED is lit on one of the processor modules.

   See Processor Module LEDs.

3. Remove the PM with the faulty DIMM.

   See Remove a Processor Module or Processor Filler Module.

4. Locate the DIMM Fault Remind button on the front right corner of the motherboard.
   
5. Verify that the DIMM Fault Remind Power LED next to the button is lit.

   An illuminated DIMM Fault Remind Power LED indicates that there is power available to light the faulty DIMM LED after you have pressed the DIMM Fault Remind button.

6. Press the DIMM Fault Remind button on the processor module.

   This will cause DIMM Fault LED associated with the faulty DIMM to light for a few minutes.

7. Confirm that the DIMM next to the illuminated DIMM Fault LED is the same DIMM that was reported to be faulty by the fmadm faulty command.

   See Determine Which DIMM Is Faulty (FMA).

8. Visually check to ensure that all of the other DIMMs are seated properly in their slots.

Related Information

• Determine Which DIMM Is Faulty (FMA)

• Remove a DIMM or DIMM Filler Panel