v
The DIMM population must be identical (size, organization, etc.) for memory
channel 0 and memory channel 1, and identical for memory channel 2 and
memory channel 3.
v
Memory mirroring reduces the maximum available memory by half of the
installed memory. For example, if the server has 64 GB of installed memory, only
32 GB of addressable memory is available when memory mirroring is enabled.
v
The following table lists the DIMM installation sequence for memory mirroring
in lockstep memory mode:
Table 16. DIMM population sequence when memory-mirroring is enabled or disabled in
lockstep mode
DIMM installation order
Lockstep mode with
memory mirroring disabled
Lockstep mode with
memory mirroring enabled
1
DIMM connectors 9 and 15
DIMM connectors 1 and 9,
and DIMM connectors 15
and 19
2
DIMM connectors 6 and 24
DIMM connectors 6 and 10,
and DIMM connectors 16
and 24
3
DIMM connectors 1 and 19
DIMM connectors 2 and 8,
and DIMM connectors 14
and 20
4
DIMM connectors 10 and 16
DIMM connectors 5 and 11,
and DIMM connectors 17
and 23
5
DIMM connectors 8 and 14
DIMM connectors 3 and 7,
and DIMM connectors 13
and 21
6
DIMM connectors 5 and 23
DIMM connectors 4 and 12,
and DIMM connectors 18
and 22
7
DIMM connectors 2 and 20
8
DIMM connectors 11 and 17
9
DIMM connectors 7 and 13
10
DIMM connectors 4 and 22
11
DIMM connectors 3 and 21
12
DIMM connectors 12 and 18
Chapter 2. Installing optional devices
61
Summary of Contents for X3850 X6
Page 1: ...System x3850 X6 and x3950 X6 Types 3837 and 3839 Installation and Service Guide...
Page 2: ......
Page 3: ...System x3850 X6 and x3950 X6 Types 3837 and 3839 Installation and Service Guide...
Page 138: ...120 System x3850 X6 and x3950 X6 Types 3837 and 3839 Installation and Service Guide...
Page 225: ...25 26 27 Chapter 5 Parts listing System x3850 X6 and x3950 X6 Types 3837 and 3839 207...
Page 1682: ...1664 System x3850 X6 and x3950 X6 Types 3837 and 3839 Installation and Service Guide...
Page 1706: ...1688 System x3850 X6 and x3950 X6 Types 3837 and 3839 Installation and Service Guide...
Page 1710: ...1692 System x3850 X6 and x3950 X6 Types 3837 and 3839 Installation and Service Guide...
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Page 1730: ...Part Number 00FH434 Printed in USA 1P P N 00FH434...