IBM System x3750 M4 Installation And Service Manual page 115

v The following table shows the DIMM connectors on the system board and the
microprocessor and memory expansion tray that are associated with each
microprocessor.
Table 21. DIMM connectors associated with each microprocessor
Microprocessor
Microprocessor 1
Microprocessor 2
Microprocessor 3
Microprocessor 4
Note: DIMMs 1 through 12 are solely associated with microprocessor 1.
Microprocessor 2 has access to DIMMs 1 through 12, but access is through
microprocessor 1. This is important if load balancing is a necessity for your
operating system or software load.
To install an additional microprocessor and heat sink, complete the following steps:
Procedure
1. Read the safety information and installation guidelines, see "Safety" on page
vii and "Installation guidelines" on page 35.
2. Turn off the server (see "Turning off the server" on page 22) and all attached
peripheral devices. Disconnect all power cords; then, disconnect all external
cables from the server.
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 37.
3. Remove the server top cover (see "Removing the server top cover" on page
38).
4. If a power supply is installed in bay 2, slide power supply 2 out of the bay
slightly.
5. Remove the microprocessor and memory expansion tray (see "Removing the
microprocessor and memory expansion tray assembly" on page 305) or DIMM
air baffle (see "Removing the DIMM air baffle" on page 232), whichever one is
installed.
Note: You only need to remove the DIMM air baffle or microprocessor and
memory expansion tray if you are installing a microprocessor in socket 2.
6. Locate microprocessor socket 2 on the system board.
7. Remove the microprocessor air baffle (see "Removing the microprocessor air
baffle" on page 41).
8. Install the microprocessor:
a. Locate the two release levers on microprocessor socket 2. Press the release
lever on the right down and inward toward the socket and lift it up to the
fully open position; then, press the release lever on the left down and
inward toward the socket and lift it up to the fully open position.
b. Lift the microprocessor bracket frame by the tab into the open position.
Location
System board
System board
Microprocessor and memory
expansion tray
Microprocessor and memory
expansion tray
Chapter 2. Installing optional devices
DIMM connectors
associated with the
microprocessor
1 through 12
13 through 24
25 through 36
37 through 48
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