Inspect the fault LEDs on the DIMM slot ejectors.
If any of these LEDs are lit, they can indicate the component with the fault.
Remove the DIMMs from the CPU module.
Refer to the
Sun Fire X4640 Server Service Manual.
Visually inspect the DIMMs for physical damage, dust, or any other contamination on the
connector or circuits.
Visually inspect the DIMM slot for physical damage. Look for cracked or broken plastic on the
slot.
Dust o the DIMMs, clean the contacts, and reseat them.
If there is no obvious damage, exchange the individual DIMMs between the two slots of a given
pair. Ensure that they are inserted correctly with ejector latches secured. Using the slot numbers
from the example:
a. Remove the DIMMs from CPU0, slots 1 and 0.
b. Reinstall the DIMM from slot 1 into slot 0.
c. Reinstall the DIMM from slot 0 into slot 1.
Reinstall the CPU module that has the DIMM problem.
Refer to the
Sun Fire X4640 Server Service Manual.
Reconnect AC power cords to the server.
Power on the server and run the diagnostics test again.
Review the log le.
■
If the error now appears in CPU0, slot 0 (the opposite of the original error in slot 1), the
problem is related to the individual DIMM. In this case, return both DIMMs (the pair) to
the Support Center for replacement.
■
If the error still appears in CPU0, slot 1 (as the original error did), the problem is not related
to an individual DIMM. Instead, it might be caused by CPU0 or by the DIMM slot.
Continue with the rest of the procedure.
Shut down the server again and disconnect the AC power cords.
7
8
9
10
11
12
13
14
15
16
17
DIMM Population Rules
Sun Fire X4640 Server Diagnostics Guide • December 2010, Rev A18
To Next Page
Loading...
Need help?
General