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Chapter 1. Technical description 17
For more information about the features of the Xeon Processor DP, go to:
http://www.intel.com/design/xeon/prodbref
1.5 SMP Expansion Module
The SMP Expansion Module is the central electronics complex that contains the
processors, memory, L4 system cache, and respective controllers for these
components. The base x440 system includes one SMP Expansion Module. Each
SMP Expansion Module contains slots for up to four Xeon MP processors (or two
Xeon DP processors) and 16 DIMMs.
There are two SMP Expansion Module part numbers for x440 models:
32P8340 is used in Xeon MP models. It is “unpopulated”, which means it
does not contain any processors or memory. Any of the support Xeon MP
processors can be installed in it.
71P7919 is used in Xeon DP models. It contains two 2.4 GHz Xeon DP
processors and VRMs, and is used to upgrade a two-way Xeon DP x440 to a
four-way configuration.
71P7919 is also compatible with Xeon MP processors. If you wish to upgrade
your Xeon DP-based x440 to use Xeon MP processors, you can simply
replace the processors and VRMs with supported Xeon MP processors.
Note: Information about the SMP Expansion Modules to be used in
Gallatin-based systems (or existing systems you wish to upgrade to Gallatin
processors) was not available at the time of publication.
The SMP Expansion Module is installed from the top of the server and mounts to
the side of the centerplane using two levers on the top, as shown in Figure 1-10
on page 18. These same levers are used to remove the top of the SMP
Expansion Module when adding additional processors or memory.
Supported in multi-node configurations No Yes
Core frequency (x440 models) 2.4 GHz 1.4, 1.5, 1.6, 1.9, or 2.0 GHz
Level 2 cache 512 KB 256 KB
Level 3 cache None 512 KB, 1 MB or 2 MB
Feature Xeon Processor DP Xeon Processor MP