IBM x3500 Installation Guide - Page 28

Minimum configuration: one pair of DIMMs, Other Configuration: Multiple Pairs of DIMMs - 7977 operating system not found

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CH3 Minimum configuration: one pair of DIMMs (Branch 0 works independently of Branch 1) BR1 BR0 CH2 CH1 CH0 DIMM 10 DIMM 7 DIMM 11 DIMM 8 Rank 0 DIMM 4 DIMM 1 Rank 1 Rank 1 is sparing to Rank 0 DIMM 5 DIMM 2 A pair of two identical double rank modules: same size, speed, and organization DIMM 12 DIMM 9 DIMM 6 DIMM 3 CH3 Other Configuration: Multiple Pairs of DIMMs (Branch 0 works independently of Branch 1) BR1 BR0 CH2 CH1 CH0 DIMM 10 DIMM 7 DIMM 11 DIMM 8 Rank 0 512 MB DIMM 4 DIMM 1 Rank 1 Empty Rank 2 512 MB DIMM 5 DIMM 2 A pair of two identical single rank modules (512MB) A pair of two identical double rank modules (1GB) DIMM 12 DIMM 9 Rank 3 512 MB Rank 4 1 GB DIMM 6 DIMM 3 Rank 5 Empty A pair of two identical single rank modules (1GB) Rank 4 is used to spare any defective rank of rank 0, 2, and 3 - A rank is defined as an area or block of 64 bits that is created by using some or all of the chips on a DIMM. For an ECC DIMM, a memory rank is a block of 72 data bits (64 bits plus 8 ECC bits). - The minimum memory configuration is two single-rank DIMMs that are installed in branch 0, DIMM connector 1 (in channel 0) and connector 4 (in channel 1); however, online-sparing is not supported with this configuration. - To support online-sparing in branch 0, you must add a second pair of DIMMs. The spare pair of DIMMs can be single-rank or double-rank and must be the same speed, type, size (or larger), and technology as the failed pair of DIMMs. The spare pair must be installed in branch 0, DIMM connector 2 (in channel 0) and connector 5 (in channel 1). Branch 0 and branch 1 operate independently. v The following notes apply when the server operates in non-mirroring mode (normal mode): - DIMMs must be installed in matched pairs. If you install a second pair of DIMMs in DIMM connector 7 and DIMM connector 10, they do not have to be the same size, speed, type, and technology as the DIMMs in DIMM connector 14 IBM System x3500 Type 7977: Installation Guide

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BR0
BR0
BR1
BR1
DIMM 7
DIMM 8
DIMM 9
CH2
DIMM 7
DIMM 8
DIMM 9
CH2
DIMM 10
DIMM 11
DIMM 12
CH3
DIMM 10
DIMM 11
DIMM 12
CH3
Rank 0
Rank 0 512 MB
Rank 4 1 GB
Rank 2 512 MB
Rank 1
Rank 1 Empty
Rank 5 Empty
Rank 3 512 MB
Minimum configuration: one pair of DIMMs
Other Configuration: Multiple Pairs of DIMMs
(Branch 0 works independently of Branch 1)
(Branch 0 works independently of Branch 1)
Rank 4 is used to spare any defective rank of rank 0, 2, and 3
A pair of two identical
double rank modules:
same size, speed,
and organization
Rank 1 is sparing to Rank 0
DIMM 1
DIMM 1
DIMM 2
DIMM 2
DIMM 3
DIMM 3
CH0
CH0
DIMM 4
DIMM 4
DIMM 5
DIMM 5
DIMM 6
DIMM 6
CH1
CH1
A pair of two identical
single rank modules
(512MB)
A pair of two identical
single rank modules
(1GB)
A pair of two identical
double rank modules
(1GB)
-
A
rank
is
defined
as
an
area
or
block
of
64
bits
that
is
created
by
using
some
or
all
of
the
chips
on
a
DIMM.
For
an
ECC
DIMM,
a
memory
rank
is
a
block
of
72
data
bits
(64
bits
plus
8
ECC
bits).
-
The
minimum
memory
configuration
is
two
single-rank
DIMMs
that
are
installed
in
branch
0,
DIMM
connector
1
(in
channel
0)
and
connector
4
(in
channel
1);
however,
online-sparing
is
not
supported
with
this
configuration.
-
To
support
online-sparing
in
branch
0,
you
must
add
a
second
pair
of
DIMMs.
The
spare
pair
of
DIMMs
can
be
single-rank
or
double-rank
and
must
be
the
same
speed,
type,
size
(or
larger),
and
technology
as
the
failed
pair
of
DIMMs.
The
spare
pair
must
be
installed
in
branch
0,
DIMM
connector
2
(in
channel
0)
and
connector
5
(in
channel
1).
Branch
0
and
branch
1
operate
independently.
v
The
following
notes
apply
when
the
server
operates
in
non-mirroring
mode
(normal
mode):
–
DIMMs
must
be
installed
in
matched
pairs.
If
you
install
a
second
pair
of
DIMMs
in
DIMM
connector
7
and
DIMM
connector
10,
they
do
not
have
to
be
the
same
size,
speed,
type,
and
technology
as
the
DIMMs
in
DIMM
connector
14
IBM
System
x3500
Type
7977:
Installation
Guide