Installing A Memory Module - IBM System x3250 User Manual

4. Attach the drive retention clip to the side of the drive.
5. Slide the drive into the CD/DVD drive bay until the drive clicks into place.
If you have other devices to install or remove, do so now. Otherwise, go to
"Completing the installation" on page 32.

Installing a memory module

The following notes describe the types of dual inline memory modules (DIMMs) that
the server supports and other information that you must consider when you install
DIMMs:
v The server supports 512 MB, 1 GB, and 2 GB DIMMs, for a maximum of 8 GB of
v The amount of usable memory will be reduced depending on the system
v The server comes with one 512 MB DIMM installed in DIMM connector 1. Some
v If you install a pair of DIMMs in DIMM connectors 2 and 4, they do not have to
v Install only double-data-rate II (DDR II), PC2-5300, unbuffered synchronous
v If you install a pair of 2 GB DIMMs and a pair of other-size DIMMs, the 2 GB
v When you restart the server after you add or remove a DIMM, a message is
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IBM System x3250 Types 4364 and 4365: User's Guide
system memory. See http://www.ibm.com/servers/eserver/serverproven/compat/
us/ for a list of memory modules that you can use with the server.
configuration. A certain amount of memory must be reserved for system
resources. Use the system summary in the Configuration/Setup Utility program to
view the total amount of installed memory and the amount of configured memory
(see "Using the Configuration/Setup Utility program" on page 38).
models come with a second 512 MB DIMM installed in DIMM connector 3. If one
DIMM is installed, when you install an additional DIMM, you must install it in
DIMM connector 3, and it must be the same size, speed, type, and technology as
the DIMM that is installed in DIMM connector 1. You can mix compatible DIMMs
from various manufacturers. The third and fourth DIMMs must be installed as a
pair, in DIMM connectors 2 and 4.
be the same size, speed, type, and technology as the DIMMs that are installed in
DIMM connectors 1 and 3. However, the size, speed, type, and technology of the
DIMMs that you install in DIMM connectors 2 and 4 must match each other.
dynamic random-access memory (SDRAM) with error correcting code (ECC)
DIMMs. These DIMMs must be compatible with the latest PC2-5300 SDRAM
unbuffered DIMM specification.
DIMMs must be installed as the first pair (in DIMM connectors 1 and 3).
displayed indicating that the memory configuration has changed.