IBM System x3400 M3 Types 7378 Installation And User Manual page 102

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.
The following illustration shows how to install DIMMs on the system board.
Attention:
the server is powered-on might cause the server to stop, which might result in the
loss of data. To avoid this potential problem, always use an electrostatic-discharge
wrist strap or other grounding system when you work inside the server with the
power on.
To install a DIMM, complete the following steps:
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IBM System x3400 M3 Types 7378 and 7379: Installation and User's Guide
Table 9. Memory-mirroring mode DIMM population sequence (continued)
DIMMs
Second pair of DIMMs
Third pair of DIMMs
Fourth pair of DIMMs
Fifth pair of DIMMs
Sixth pair of DIMMs
Note: DIMM connectors 7, 8, 15, and 16 are not used in memory-mirroring mode.
Static electricity that is released to internal server components when
1. Read the safety information that begins on page vii and "Installation guidelines"
on page 29.
2. Turn off the server and peripheral devices; then, disconnect the power cords
and all external cables.
3. Remove the left-side cover (see "Removing the left-side cover" on page 49).
4. Remove the hot-swap power supply or power supplies from the server.
Number of installed
microprocessors
1
1
2
2
2
DIMM connector
2, 5
1, 4
14, 11
13, 10
12, 9