v See “Installing a memory module” on page 43 for notes and information that
you must consider when you install DIMMs. For DIMM population information,
see “Non-mirroring (independent mode)” on page 46, “Memory mirroring” on
page 46, and “Memory sparing” on page 48.
v Confirm that the server supports the DIMM that you are installing, see
http://www.ibm.com/systems/info/x86servers/serverproven/compat/us/.
To install a DIMM, complete the following steps:
Procedure
1. Read the safety information that begins on page “Safety” on page vii and
“Installation guidelines” on page 35.
2. Turn off the server and peripheral devices and disconnect the power cords
and all external cables, if necessary.
3. Remove the top cover (see “Removing the server top cover” on page 226).
4. Touch the static-protective package that contains the DIMM to any unpainted
metal surface on the outside of the server. Then, remove the DIMM from the
package.
5. Open the retaining clip on each end of the DIMM connector.
Attention: To avoid breaking the retaining clips or damaging the DIMM
connectors, open and close the clips gently.
DIMM
Retaining
clip
Retaining
clip
6. Turn the DIMM so that the DIMM keys align correctly with the connector.
7. Insert the DIMM into the connector by aligning the edges of the DIMM with
the slots at the ends of the DIMM connector (see “System-board
optional-device connectors” on page 33 for the locations of the DIMM
connectors).
8. Firmly press the DIMM straight down into the connector by applying pressure
on both ends of the DIMM simultaneously. The retaining clips snap into the
locked position when the DIMM is firmly seated in the connector.
248 System x3750 M4 Types 8722 and 8733: Installation and Service Guide
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