Locate A Failed Memory Riser Card, Dimm, Or Cpu - Oracle Sun Server X4-4 Service Manual

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The indicator lights when the circuit is charged.

Locate a Failed Memory Riser Card, DIMM, or CPU

To locate a failed memory riser card, DIMM or CPU, use the fault remind circuits inside the
server. The circuit uses board-mounted indicator LEDs that allow you to identify the failed
component. If the failed component is a memory riser card or a CPU, the indicators identify
the component directly. If the failed component is a DIMM, the indicators identify the memory
riser card containing the DIMM. Then to locate the failed DIMM, you need to remove the
memory riser card and use the card's DIMM Fault Remind circuitry.
For more information about the system and DIMM Fault Remind circuits, see
Remind Test Circuits " on page
To troubleshoot faulty hardware components, see
Before You Begin ■
Hardware Faults" on page
Note -
server you have 10 minutes to use the DIMM Fault Remind circuit and 30-60 minutes to use the
System Fault Remind circuit.
1. Prepare for service. See
2. Press and hold the system Fault Remind button.
Description
MR card Fault indicator
DIMM Fault indicators
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The test circuits are charged, time-limited circuits. Once power is removed from the
"Prepare the Server for Cold Service" on page

Locate a Failed Memory Riser Card, DIMM, or CPU

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"Troubleshooting Server Component
Description
Fault Remind button
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Charge Status indicator
"The Server Fault
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Servicing the Server 81