Hot-Replacing Dimms - IBM xSeries 455 Installation Manual

Hot-replacing DIMMs

Complete the following steps to install a DIMM in your server with the server turned
on:
1. Read the safety information beginning on page v and "Installation guidelines" on
2. Open the top cover and verify that the memory hot-plug enabled LED on the
3. Open the DIMM access door and verify that the memory port power LED is off
4. Install the new DIMM:
page 7.
DIMM access door is lit before removing and replacing the DIMM.
Attention: When you handle static-sensitive devices, take precautions to
avoid damage from static electricity. For details about handling these devices,
see "Handling static-sensitive devices" on page 8.
before replacing a DIMM. Then, open the retaining clip on each end of the
DIMM connector and remove the DIMM from the server.
a. Open the retaining clip on each end of the DIMM connector.
b. Touch the static-protective package containing the DIMM to any unpainted
metal surface on the server. Then, remove the DIMM from the package.
Attention: To avoid breaking the retaining clips or damaging the DIMM
connectors, open and close the clips gently.
c. Turn the DIMM so that the DIMM keys align correctly with the slot.
d. Insert the DIMM into the connector by aligning the edges of the DIMM with
the slots at the ends of the DIMM connector. 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. If there is a gap between the DIMM
and the retaining clips, the DIMM has not been correctly inserted; open the
Chapter 2. Installing options
23