IBM LS20 - BladeCenter - 8850 Service Manual page 85

To install a replacement memory module (DIMM), complete the following
steps:
1. Read the documentation that comes with the DIMMs.
2. Locate the DIMM connectors on the system board. Determine the connector into
which the DIMM will be installed.
Microprocessor 2
DIMM 4 (J2)
DIMM 3 (J4)
3. Touch the static-protective package that contains the DIMM option to any
unpainted metal surface on the BladeCenter unit or any unpainted metal surface
on any other grounded rack component in the rack you are installing the DIMM
option in for at least 2 seconds; then, remove the DIMM from its package.
4. To install a DIMM, repeat the following steps for each DIMM that you install:
a. Make sure that both of the connector retaining clips are in the fully open
position.
DIMM
b. Turn the DIMM so that the DIMM keys align correctly with the connector on
the system board.
Attention: To avoid breaking the retaining clips or damaging the DIMM
connectors, handle the clips gently.
c. Insert the DIMM by pressing the DIMM along the guides into the connector.
Make sure that the retaining clips snap into the closed positions.
Important: If there is a gap between the DIMM and the retaining clips, the
DIMM has not been correctly installed. In this case, open the retaining clips
and remove the DIMM; then, reinsert the DIMM.
5. Install the blade server cover (see "Operating the blade server cover" on page
64 for instructions).
6. Install the blade server into the BladeCenter unit. See "Removing and installing
the blade server in a BladeCenter unit" on page 61 for instructions.
Microprocessor 1
DIMM 2 (J30)
DIMM 1 (J31)
Retaining
clip
Chapter 4. Removing and replacing blade server components
71