CHAPTER 2 Hardware Configuration
2.5 SB (System board)
50
FIGURE 2.17 SB External view (2800B)
No.
Description
(1)
Top view
(2)
Front view
(3)
Front perspective view
The outline of each component making up the SB is shown follows.
- CPU
Three system buses called Intel ®
QuickPath Interconnect (QPI) are output from each CPU. Large scale
configuration (SMP) with up to 8 CPUs can be made, by connecting to other CPUs. A memory controller
is also mounted in CPU and four SMI2 interfaces are output.
- Memory Buffer (MB)
In PRIMEQUEST 2400E3/2800E3/2800B3/2400E2/2800E2/2800B2, the MB is a converter chip that is
connected to the CPU and memories.
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