6. Locate the DIMM connectors on the system board. Determine the connectors
into which you will install the DIMMs. Install the DIMMs in the sequence shown
in the following table.
Table 17. DIMM installation sequence
Number of DIMMs Installation sequence (connectors)
First pair of DIMMs 1, 3
Second pair of DIMMs 2, 4
7. Open the retaining clips and, if necessary, remove any existing DIMM.
Attention: To avoid breaking the retaining clips or damaging the DIMM
connectors, open and close the clips gently.
8. 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.
9. Turn the DIMM so that the DIMM keys align correctly with the connector.
10. Insert the DIMM into the connector by aligning the edges of the DIMM with the
slots at the ends of the DIMM connector.
11. 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.
Note: If there is a gap between the DIMM and the retaining clips, the DIMM
has not been correctly inserted; open the retaining clips, remove the DIMM,
and then reinsert it.
12. Install the air duct.
13. Install the side cover (see “Installing the side cover” on page 167).
14. Stand the server back up in its vertical position.
15. Install bezel (see “Installing the bezel” on page 171).
16. Reconnect the external cables and power cords; then, turn on the attached
devices and turn on the server.
To install a DIMM on the 5U server model with hot-swap power supplies (Model
name: 2582-F4x), complete the following steps. For 4U server models with
non-hot-swap power supplies, please see the above sub-section.
1. Read the safety information that begins on page vii and “Installation guidelines”
on page 163.
2. Turn off the server and peripheral devices, and disconnect the power cords
and all external cables.
206 IBM System x3100 M4 Type 2582: Problem Determination and Service Guide
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