Installing A Memory Module - IBM 326m - eServer - 7969 Hardware Maintenance Manual

Installing a memory module

The following notes describe the types of dual inline memory modules (DIMMs) that
your server supports and other information that you must consider when installing
DIMMs:
v Your server uses interleaved dual inline memory modules (DIMMs), which you
v You can increase the amount of memory in the server by replacing the installed
v To optimize system performance in a single-microprocessor configuration, install
v To optimize system performance in a dual-microprocessor configuration, install
v The server supports 512 MB, 1 GB, and 2 GB DIMMs. The memory can be
42
326m Type 7969: Hardware Maintenance Manual and Troubleshooting Guide
must add, remove, or replace in pairs. Each pair must be of the same type,
capacity, and speed. The server comes with one pair of DIMMs installed in DIMM
slots 1 and 2 on the system board.
DIMMs with higher-capacity DIMMs or by installing additional pairs of DIMMs.
DIMMs in the following sequence:
DIMM pair DIMM slots
1 1 and 2
2 3 and 4
DIMMs in the following sequence:
DIMM pair DIMM slots
1 1 and 2
2 7 and 8
3 3 and 4
4 5 and 6
expanded to a maximum of 16 GB using PC3200 2 GB DIMMs. See the
®
ServerProven list at
http://www.ibm.com/servers/eserver/serverproven/compat/us/ for a list of memory
modules that the server supports.
Important:The amount of memory installed must be the same for each
microprocessor. For example, if you want to install four 1 GB DIMMs and four
512 MB DIMMs, install one pair of 1 GB DIMMs and one pair of 512 MB DIMMs
for each microprocessor so that the total amount of memory for each
microprocessor equals 3 GB of RAM.