IBM HS21 - BladeCenter - 8853 User Manual page 35

v If the blade server does not have a Memory and I/O Expansion Blade, when you
install memory, you must install a pair of matched DIMMs. Install the DIMMs in
the following order:
Table 1. Caption. Description
Pair
First
Second
v To set up a non-mirrored memory configuration in a blade server with a Memory
and I/O Expansion Blade, when you install memory, you must install a pair of
matched DIMMs. Install the DIMMs in the following order:
Table 2. Caption. Description
Pair
First
Second
Third
Fourth
v To set up a mirrored memory configuration in a blade server with a Memory and
I/O Expansion Blade, when you install memory, you must install matched DIMMs
in groups of four. Install the DIMMs in the following order:
Table 3. Caption. Description
Group
First
Second
v All DIMMs in a pair or group must be the same size, speed, type, technology,
and physical design. You can mix compatible DIMMs from different
manufacturers.
v All DIMMs must have the same speed. However, different pairs or groups of
DIMMs do not have to be of the same size, type, technology, and physical
design.
v If you want to take advantage of Chipkill memory, each DIMM in the blade server
must support the Chipkill technology.
DIMM connectors
1 (J141) and 3 (J143)
2 (J142) and 4 (J144)
DIMM connectors
1 (system board J141) and 3 (system board
J143)
5 (Memory and I/O Expansion Blade J18)
and 7 (Memory and I/O Expansion Blade
J20)
2 (system board J142) and 4 (system board
J144)
6 (Memory and I/O Expansion Blade J19)
and 8 (Memory and I/O Expansion Blade
J21)
DIMM connectors
1 (system board J141) and 3 (system board
J143)
5 (Memory and I/O Expansion Blade J18)
and 7 (Memory and I/O Expansion Blade (
J20)
2 (system board J142) and 4 (system board
J144)
6 (Memory and I/O Expansion Blade J19)
and 8 (Memory and I/O Expansion Blade
J21)
Chapter 3. Installing options
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