Oracle X7-8, Service Manual

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Identify and Remove a Faulty DIMM
This procedure uses the DIMM fault remind test circuit in the CMOD to identify the failed
DIMM. The circuit is a charged, time-limited circuit. Once power is removed from the server
you have 10 minutes to use the circuit for troubleshooting.
Call Out Description
1 Fault Remind Power LED indicator
2 Fault Remind button
3 DIMM slot fault LED indicator (one for each slot)
6. Verify that the green Fault Remind Power LED indicator [1] is lit.
The Charge Status indicator [2] lights if the Fault Remind circuit is operational.
The Fault Remind circuit remains charged for about 10 minutes after power is removed from
the CMOD, either by disconnecting power from the server, or by removing the CMOD from the
chassis. When you press the Fault Remind button, the Charge Status indicator lights if there is
enough power to use the fault remind circuit. Otherwise it remains dark.
7. With the Fault Remind button pressed, look for a lit DIMM fault LED indicator [3].
Twelve DIMM fault LED indicators are located next to the DIMM slots.
8. Rotate both DIMM socket ejectors outward as far as they will go.
190 Oracle Server X7-8 Service Manual • October 2017