IBM HS21 User Guide - Page 35

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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 DIMM connectors 1 (J141) and 3 (J143) 2 (J142) and 4 (J144) 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 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) 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 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) 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. Chapter 3. Installing options 23

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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
DIMM
connectors
First
1
(J141)
and
3
(J143)
Second
2
(J142)
and
4
(J144)
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
DIMM
connectors
First
1
(system
board
J141)
and
3
(system
board
J143)
Second
5
(Memory
and
I/O
Expansion
Blade
J18)
and
7
(Memory
and
I/O
Expansion
Blade
J20)
Third
2
(system
board
J142)
and
4
(system
board
J144)
Fourth
6
(Memory
and
I/O
Expansion
Blade
J19)
and
8
(Memory
and
I/O
Expansion
Blade
J21)
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
DIMM
connectors
First
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)
Second
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)
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.
Chapter
3.
Installing
options
23