Table 7. The maximum amount of memory that the server supports (continued)
Number of compute
booksinstalled in the server
Number of DMMs installed Maximum memory
Note:
v
The x3850 X6 (4-socket) can support a maximum 6 TBs of memory and the x3950 X6
(8-socket) can support a maximum of 12 TBs of system memory when the server is fully
populated with compute books using 64 GB DIMMs.
v
The amount of usable memory is reduced, depending on the system configuration. A
certain amount of memory must be reserved for system resources. To view the total
amount of installed memory and the amount of configured memory, run the Setup
utility. For additional information, see “Configuring the server” on page 122.
v
Each compute book has four memory channels, eight DDR3 channels (two
DDR3 channels per memory channel), and each DDR3 channel supports three
DIMMs as shown in the following illustration:
CPU
Memory
Controller 0
Memory
Controller 1
Memory
channel
0
Memory
channel
1
Memory
channel
2
Memory
channel
3
Memory buffer 0
Memory buffer 1
Memory buffer 2
Memory buffer 3
DDR3
CH0
DDR3
CH1
DDR3
CH0
DDR3
CH1
DDR3
CH0
DDR3
CH1
DDR3
CH0
DDR3
CH1
DIMM 12
DIMM 1
1
DIMM 10
DIMM 18
DIMM 17
DIMM 16
DIMM 22
DIMM 23
DIMM 24
DIMM 4
DIMM 5
DIMM 6
DIMM 3
DIMM 2
DIMM 1
DIMM 21
DIMM 20
DIMM 19
DIMM 13
DIMM 14
DIMM 15
DIMM 7
DIMM 8
DIMM 9
Slot 2
Slot 1
Slot 0
Slot 2
Slot 1
Slot 0
Slot 2 Slot 1 Slot 0
Slot 2
Slot 1
Slot 0
Slot 2 Slot 1 Slot 0
Slot 2 Slot 1 Slot 0
Slot 2 Slot 1 Slot 0
Slot 2 Slot 1
Slot 0
The following table provides another illustrate of the DIMM connector on each
DDR3 channel for each memory channel that is associated with each compute
book.
Table 8. DIMM connector slots in the compute book that is associated with each memory channel and DDR3 channel
Microprocessor memory
channels
DDR3 channels
DIMM connector
DDR3 slot number
Channel 0
DDR3 channel 0
9
Slot 0
8
Slot 1
7
Slot 2
DDR3 channel 1
15
Slot 0
14
Slot 1
13
Slot 2
Chapter 2. Installing optional devices
49
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...
Page 1728: ...1710 System x3850 X6 and x3950 X6 Types 3837 and 3839 Installation and Service Guide...
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