Processors - NEC EXPRESS5800/180Ra-7 User Manual

Processors

The following sections provide procedures for installing and removing the
Pentium III Xeon Processor Single Edge Contact (S.E.C.) cartridge. Use these
procedures when upgrading or replacing your processor(s). Each processor is
packaged in a S.E.C. cartridge. The cartridge includes the processor core with an
integrated 16 KB primary (L1) cache, secondary (L2) cache, thermal plate, and
a cover. The processors are supported by voltage regulator modules (VRM) on
the system baseboard or on the optional CPU boxes, depending on the number
of installed processors. The optional CPU boxes are used for five or more
processors.
Each S.E.C. cartridge installs in a Slot 2 connector on the system baseboard or
CPU box. Each slot must contain either a processor cartridge or a termination
board (if there are less than four processors installed). The VRM modules are
installed in a bank of VRM sockets adjacent to the processors.
Note:
a system backboard and up to eight processors if two CPU
boxes are installed. All installed processors must be
matched for speed and cache size. If replacing a processor,
the replacement processor must match the speed and cache
size of all installed processors. If upgrading a processor, all
processors must be upgraded to match.
Electrostatic discharge (ESD) can damage components;
place them on an antistatic surface. Update the CPU
baseboard using an antistatic wrist strap attached to chassis
ground.
If the system was running, any processor and heat sink
installed is hot. To avoid the possibility of a burn, let the
components cool for 10 minutes before continuing with these
procedures.
Your system may have up to four processors on
! CAUTION
! WARNING
Upgrading Your System 4-13