IBM Netfinity 3000, User Handbook Manual, Page: 244 / 370

Troubleshooting
Memory problems Action
The amount of memory
displayed is less than the
amount of memory
installed. The amount of available memory shown might be
somewhat less than expected because of basic
input/output system (BIOS) shadowing in random
access memory (RAM).
Verify that:
1. The memory modules are properly seated and
securely connected.
2. You have installed the correct type of memory for
your server. Install only ECC DIMMs to enable
ECC. If you mix nonparity (NP) DIMMs and ECC
DIMMs, ECC will be disabled. See “Working with
memory modules” on page 96 for additional
information about memory requirements.
3. If you added or removed memory, you updated the
memory configuration with the
Configuration/Setup Utility program. For
information about using the Configuration/Setup
Utility program, see “Using the
Configuration/Setup Utility program” on page 39.
4. The DIMMs that you installed have the correct
speed (100 MHz).
If the problem persists, run the memory test from the
diagnostic program that comes with your server. (See
“Running the diagnostic test programs” on page 164
for additional information.) The system might have
detected a defective DIMM and automatically
reallocated memory to enable your server to continue
to operate.
If the problem cannot be isolated and corrected, have
the system serviced.
210
Netfinity 3000 User's Handbook