IBM 8038 Installation And User Manual page 42

Note: In mirrored channel mode, if any of the installed DIMMs does not meet the
requirements listed above, the system is executed as independent channel mode.
To install a DIMM, complete the following steps:
10. To install the DIMMs, repeat the following steps for each DIMM that you
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BladeCenter HS23E Type 8038 and 8039: Installation and User's Guide
1. Before you begin, read "Safety" on page v and "Installation guidelines" on
page 17.
2. Read the documentation that comes with the DIMMs.
3. If the blade server is installed in a BladeCenter unit, remove it (see
"Removing the blade server from the BladeCenter unit" on page 19 for
instructions).
4. Carefully lay the blade server on a flat, static-protective surface.
5. Open the blade server cover (see "Removing the blade server cover" on page
20 for instructions).
6. If an expansion unit is installed and you are installing DIMMs on the system
board, remove the expansion unit (see "Removing an optional expansion unit"
on page 23).
7. Locate the DIMM connectors (see "Blade server connectors" on page 15).
Determine which DIMM connector you will be installing memory into.
8. If a DIMM filler or another memory module is already installed in the DIMM
connector, remove it (see "Removing a memory module" on page 29).
Note: A DIMM or DIMM filler must occupy each DIMM socket before the
blade server is turned on.
9. Touch the static-protective package that contains the DIMM to any unpainted
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 two seconds; then, remove the DIMM from its package.
install:
a. Make sure that the retaining clips are in the open position, away from the
center of the DIMM connector.
b. Turn the DIMM so that the DIMM keys align correctly with the DIMM
connector on the system board.
Attention: To avoid breaking the retaining clips or damaging the DIMM
connectors, handle the clips gently.
c. Press the DIMM into the DIMM connector. The retaining clips will lock the
DIMM into the connector.
d. Make sure that the small tabs on the retaining clips are in the notches on
the DIMM. If there is a gap between the DIMM and the retaining clips, the
DIMM has not been correctly installed. Press the DIMM firmly into the