NEC Express5800 320La, User Manual

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System Overview 1-19
System Features
The following subsections provide a description of the system features.
Pentium III Processor
Depending on system configuration, each CPU CRU can include up to two Pentium III
800 MHz processors, see Figure 1-12. Each Pentium III processor is mounted on the
CPU board located in the CPU module. The primary processor plugs into a Zero
Insertion Force (ZIF) socket on the board. The processor features a 256 KB cache. An
optional second Pentium processor
III enhances performance and allows Symmetric
Multiprocessing (SMP ).
A
B
C
D
E
F
A CPU module
B CPU board
C Primary processor
D Voltage regulator for primary processor
E
Voltage regulator for secondary processor
F Secondary processor
Figure 1-12. Processor Locations on the CPU Board