Oracle Sun Server X4-4 Service Manual page 82

Locate a Failed Memory Riser Card, DIMM, or CPU
The Fault Remind button is located on the divider between the cooling zone 1 and cooling zone
2.
3. Verify that the system Fault Remind circuit is usable.
When the Fault Remind button is pressed, the Fault Remind button Power LED illuminates
(green) to indicate that the remind circuitry is usable.
4. Look for the lit Fault indicators:
If the circuit is usable, identify the failed component by the lit Fault indicators. Use the
information in the following table to help you find the component.
Component
CPU
Memory riser card
DIMM
To locate a failed CPU, look for the lit MR card Fault indicators and
■
the lit CPU Fault indicator. For more information, see
Indicators" on page
82 Sun Server X4-4 Service Manual • October 2015
Memory Riser LED CPU LED
On On
The LEDs for both
memory riser cards
associated with the failed
CPU turn on.
On Off
On Off
To locate the failed DIMM,
remove the MR card
and use the DIMM Fault
Remind circuit.
79.
DIMM LED
Off
Off
On
"CPU Fault