IBM JS21 - BladeCenter - 8844 Installation And User Manual page 32

v When you install memory, you must install a pair of matched DIMMs. Install the
v Both DIMMs in a pair must be the same size, speed, type, technology, and
v The second pair of DIMMs must have the same speed as the first pair. However,
v Install only DDR2, PC2-3200 or PC2-4200, registered SDRAM with ECC DIMMs.
v Installing or removing DIMMs changes the configuration of the blade server. After
To install a DIMM, complete the following steps:
1. Read the safety information that begins on page v and "Installation guidelines"
2. Read the documentation that comes with the DIMMs.
3. Shut down the operating system, turn off the blade server, and remove the
4. Carefully lay the blade server on a flat, static-protective surface.
5. Open the blade server cover (see "Opening the blade server cover" on page 17
6. Locate the DIMM connectors on the system board (see the illustration in
7. Touch the static-protective package that contains the DIMM to any unpainted
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BladeCenter JS21 Type 8844: Installation and User's Guide
DIMMs in the following order:
Pair
First
Second
physical design. You can mix compatible DIMMs from different manufacturers.
the second pair does not have to be DIMMs of the same size, type, technology,
and physical design as the first pair.
For a current list of supported DIMMs for the blade server, see
http://www.ibm.com/servers/eserver/serverproven/compat/us/.
you install or remove a DIMM, the blade server is automatically reconfigured, and
the new configuration information is stored. When you restart the blade server, it
displays a message indicating that the memory configuration has changed.
on page 15.
blade server from the BladeCenter unit. See "Removing the blade server from
the BladeCenter unit" on page 16 for instructions.
for instructions).
"System-board connectors" on page 14). Determine the connectors into which
you will install the DIMMs.
metal surface on the BladeCenter unit or any unpainted metal surface on any
other grounded rack component in the rack in which you are installing the DIMM
for at least 2 seconds; then, remove the DIMM from its package.
DIMM connectors
2 and 4 (J401 and J403)
1 and 3 (J400 and J402)
DIMM
Retaining clip