Lenovo System x3750 M4 Installation And Service Manual page 107

Table 20. 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.
There are two types of microprocessor installation tools. The tools are similar in function and design;
but, have a major difference:
• Installation Tool A has one setting for installing one size of microprocessor that supports E5-26xx and
E5-46xx microprocessors.
• Installation Tool B supports E5-26xx, E5-46xx, E5-26xx v2, and E5-46xx v2 microprocessors. Installation
Tool B has two settings for installing two different sizes of microprocessors. The settings on Tool B are:
– "L" for smaller low core microprocessors
– "H" for larger high core microprocessors
Microprocessor Installation Tools A and B are shown in the next illustration.
Microprocessor Installation Tool A
To install an additional microprocessor and heat sink, complete the following steps:
Step 1. Read the safety information and installation guidelines, see "Safety" on page v and "Installation
guidelines" on page 38.
Location
System board
System board
Microprocessor and memory
expansion tray
Microprocessor and memory
expansion tray
Installation tool
Microprocessor
Cover
Microprocessor Installation Tool B
DIMM connectors associated with
the microprocessor
1 through 12
13 through 24
25 through 36
37 through 48
Installation tool
Microprocessor
Chapter 2
.
Installing optional devices
93