IBM x3630 M3 7377 Problem Determination And Service Manual page 48

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, Type 7377 server," on page 125 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
0051006 DIMM mismatch detected
0051009 No memory detected
005100A No usable memory detected
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IBM System x3630 M3 Type 7377: 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.
Make sure that the DIMMs match and are installed in the
correct sequence (see "Installing a memory module" on page
162).
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. Make sure one or more DIMMs are installed in the server.
2. Reseat the DIMMs and restart the server (see "Removing
a memory module (DIMM)" on page 161 and "Installing a
memory module" on page 162).
3. Make sure that the DIMMs match and are installed in the
correct sequence (see "Installing a memory module" on
page 162).
4. (Trained service technician only) Replace the
microprocessor that controls the failing DIMMs (see
"Removing a microprocessor and heat sink" on page 221
and "Installing a microprocessor and heat sink" on page
223).
5. (Trained service technician only) Replace the system
board (see "Removing the system board" on page 228
and "Installing the system board" on page 230).
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. Make sure one or more DIMMs are installed in the server.
2. Reseat the DIMMs and restart the server (see "Removing
a memory module (DIMM)" on page 161 and "Installing a
memory module" on page 162).
3. Make sure that the DIMMs match and are installed in the
correct sequence (see "Installing a memory module" on
page 162).
4. Clear CMOS memory to ensure that all DIMM connectors
are enabled (see "Removing the system battery" on page
142 and "Installing the system battery" on page 143). Note
that all firmware settings will be reset to the default
settings.