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All standard models of the x3850 M2 and x3950 M2 have two processors
installed. One, two, three, or four processors are supported. Installed processors
must be identical in model, speed, and cache size.
Tip: For the purposes of VMware VMotion, the Dunnington processors are
compatible with the Tigerton processors.
As described in 1.3, "Multinode capabilities" on page 14, you can also connect
multiple x3950 M2s to form larger single-image configurations.
The processors are accessible from the top of the server after opening the media
hood. The media hood is hinged at the middle of the system and contains the
SAS drives, optical media, USB ports and light path diagnostic panel.
Figure 1-14 shows the media hood half-way open.
Figure 1-14 The x3950 M2 with the media hood partially open
The processors are each packaged in the 604-pin Flip Chip Micro Pin Grid Array
(FC-mPGA) package. It is inserted into surface-mount mPGA604 socket. The
processors use a large heat-sink to meet thermal specifications.
34
Planning, Installing, and Managing the IBM System x3950 M2
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