IBM System x3250 Installation Manual page 24

Types 4364 and 4365

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v Install only double-data-rate II (DDR II), PC2-5300, unbuffered synchronous

v If you install a pair of 2 GB DIMMs and a pair of other-size DIMMs, the 2 GB

v When you restart the server after you add or remove a DIMM, a message is

To install a DIMM, complete the following steps:

1. Read the safety information that begins on page v and "Installation guidelines"

2. Turn off the server and peripheral devices, and disconnect the power cord and

3. Open the retaining clip on each end of the DIMM connector.

4. Touch the static-protective package that contains the DIMM to any unpainted

5. Turn the DIMM so that the keys align correctly with the slot.

6. Insert the DIMM into the connector by aligning the edges of the DIMM with the

If you have other devices to install, do so now. Otherwise, go to "Completing the

installation" on page 18.

IBM System x3250 Types 4364 and 4365: Installation Guide

DIMM connectors 1 and 3. However, the size, speed, type, and technology of the

DIMMs that you install in DIMM connectors 2 and 4 must match each other.

dynamic random-access memory (SDRAM) with error correcting code (ECC)

DIMMs. These DIMMs must be compatible with the latest PC2-5300 SDRAM

unbuffered DIMM specification.

DIMMs must be installed as the first pair (in DIMM connectors 1 and 3).

displayed indicating that the memory configuration has changed.

on page 7.

all external cables. Remove the cover.

Attention:

To avoid breaking the retaining clips or damaging the DIMM

connectors, open, and close the clips gently.

metal surface on the outside of the server. Then, remove the DIMM from the

package.

slots at each end 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 retaining

clips, remove the DIMM, and then reinsert it.

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System x3250 type 4364 System x3250 type 4365