IBM System x iDataPlex dx360 M2 Problem Determination And Service Manual page 35

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
0051009 No memory detected
005100A No usable memory detected
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. Make sure one or more DIMMs are installed in the server.
2. Reseat the DIMMs and restart the server (see "Removing
a memory module" on page 163 and "Installing a memory
module" on page 164).
3. Make sure that the DIMMs match and are installed in the
correct sequence (see "Installing a memory module" on
page 164).
4. (Trained service technician only) Replace the
microprocessor that controls the failing DIMMs (see
"Removing a microprocessor and heat sink" on page 197
and "Installing a microprocessor and heat sink" on page
199).
5. (Trained service technician only) Replace the
system-board tray (see "Removing the system-board tray"
on page 208 and "Installing the system-board tray" on
page 210).
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" on page 163 and "Installing a memory
module" on page 164).
3. Make sure that the DIMMs match and are installed in the
correct sequence (see "Installing a memory module" on
page 164).
4. Clear CMOS memory to ensure that all DIMM connectors
are enabled (see "Removing the battery" on page 137
and "Installing the battery" on page 138). Note that all
firmware settings will be reset to the default settings.
19
Chapter 3. Diagnostics