Lenovo System x3950 X6 Product Manual page 12

The following table shows the processor options. Each option includes the processor installed in a
Compute Book.
Note: Compute Books with E7-4800 v2 processors are supported only in a four-socket x3850 X6 server
and cannot be used in an x3950 X6 server.
The table also shows the maximum memory bus speed each processor supports plus which server
models have each processor standard. If there is no corresponding where-used model for a particular
processor, this processor is only available through CTO.
Table 4. Processor options
Part number Feature
code
Intel Xeon E7-8800 v2 processor family (also supported in x3850 X6)
44X4001 A4BB
44X4031 A4BH
44X4011 A4BD
44X4016 A4BE
44X4036 A4BJ
44X4021 A4BF
44X4026 A4BG
44X4006 A4BC
† The processors support two memory modes, RAS mode (also known as lockstep mode) and Performance mode
(also known as independent mode). In Performance mode, the SMI2 link operates at twice the memory bus speed
shown.
System x3950 X6
Description
(processor installed in a Compute
Book)
X6 Compute Book Intel Xeon E7-8850
v2 12C 2.3GHz 105W
X6 Compute Book Intel Xeon E7-8857
v2 12C 3.0GHz 130W
X6 Compute Book Intel Xeon E7-8870
v2 15C 2.3GHz 130W
X6 Compute Book Intel Xeon E7-8880
v2 15C 2.5GHz 130W
X6 Compute Book Intel Xeon
E7-8880L v2 15C 2.2GHz 105W
X6 Compute Book Intel Xeon E7-8890
v2 15C 2.8GHz 155W
X6 Compute Book Intel Xeon E7-8891
v2 10C 3.2GHz 155W
X6 Compute Book Intel Xeon E7-8893
v2 6C 3.4GHz 155W
Memory bus Supported
speed (RAS / quantities
Performance)† x3950 X6
1600 / 1066 MHz 4, 6, 8
1600 / 1333 MHz 4, 6, 8
1600 / 1333 MHz 4, 6, 8
1600 / 1333 MHz 4, 6, 8
1600 / 1333 MHz 4, 6, 8
1600 / 1333 MHz 4, 6, 8
1600 / 1333 MHz 4, 6, 8
1600 / 1333 MHz 4, 6, 8
x3950 X6
models
where used
BAx
-
CAx
-
-
CCx
-
-
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