Lenovo 3797 User Manual download pdf (Page 84)

Table 10. Memory-mirroring mode DIMM population sequence

DIMMs

Number of installed

microprocessors DIMM connector

First pair of DIMMs 1 3, 6

Second pair of DIMMs 1 2, 5

Third pair of DIMMs 1 1, 4

Fourth pair of DIMMs 2 14, 11

Fifth pair of DIMMs 2 13, 10

Sixth pair of DIMMs 2 12, 9

Note: DIMM connectors 7, 8, 15, and 16 are not used in memory-mirroring mode.

When you install or remove DIMMs, the server configuration information changes.

When you restart the server, the system displays a message that indicates that the

memory configuration has changed.

Installing a DIMM

To install a DIMM, complete the following steps.

1. Read the safety information that begins on page vii and “Installation guidelines”

on page 33.

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

all external cables (see “Turning off the server” on page 31).

3. Remove the server cover (see “Removing the cover” on page 37).

1 DIMM air baffle

2 PCI riser-card assembly 1

68 ThinkServer RD220 Types 3729, 3779, 3797, and 3798: Installation and User Guide

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Lenovo 3797 User Manual Page 84