IBM System x iDataPlex dx360 M2 Problem Determination And Service Manual page 34

v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See Chapter 4, "Parts listing," on page 109 to determine which components are customer replaceable
units (CRU) and which components are field replaceable units (FRU).
v If an action step is preceded by "(Trained service technician only)," that step must be performed only by a
trained service technician.
Error code Description
0051003 Uncorrectable DIMM error
0051006 DIMM mismatch detected
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System x iDataPlex dx360 M2: Problem Determination and Service Guide
Action
Note: Each time you install or remove a DIMM, you must
disconnect the server from the power source; then, wait 10
seconds before restarting the server.
1. Check the IBM support website for an applicable retain tip
or firmware update that applies to this memory error.
2. Manually re-enable all affected DIMMs if the server
firmware version is older than UEFI v1.10. If the server
firmware version is UEFI v1.10 or newer, disconnect and
reconnect the server to the power source and restart the
server.
3. If the problem remains, replace the failing DIMM (see
"Removing a memory module" on page 163 and
"Installing a memory module" on page 164).
4. (Trained service technician only) If the problem occurs on
the same DIMM connector, check the DIMM connector. If
the connector contains any foreign material or is
damaged, replace the system-board tray (see "Removing
the system-board tray" on page 208 and "Installing the
system-board tray" on page 210).
5. (Trained service technician only) Remove the affected
microprocessor and check the microprocessor socket pins
for any damaged pins. If a damage is found, replace the
system-board tray (see "Removing the system-board tray"
on page 208 and "Installing the system-board tray" on
page 210).
6. (Trained Service technician only) Replace the affected
microprocessor (see "Removing a microprocessor and
heat sink" on page 197 and "Installing a microprocessor
and heat sink" on page 199).
Note: Each time you install or remove a DIMM, you must
disconnect the server from the power source; then, wait 10
seconds before restarting the server.
Make sure that the DIMMs match and are installed in the
correct sequence (see "Installing a memory module" on page
164).