About Ultrasparc Ii Cpu Modules; Cpu Module Configuration Rules; Removing And Installing A Cpu Module - Sun Microsystems Enterprise 250 Product Notes

About UltraSPARC II CPU Modules

The Sun Enterprise 250 server supports up to two 250-, 300-, or 400-MHz
UltraSPARC™ II CPU modules. The new 400-MHz UltraSPARC II CPU module has
2 Mbytes of integrated cache memory.
Identifying Your CPU Module
Before installing your CPU module, verify that the module is one of the following
UltraSPARC II modules for Sun Enterprise 250 server systems. The following table
identifies CPU module speeds and part numbers.
Module Speed (MHz)
250 MHz
300 MHz
400 MHz

CPU Module Configuration Rules

Configure your UltraSPARC II CPU modules in your server according to the rules in
the section "About CPU Modules" in the Sun Enterprise 250 Server Owner's Guide.
Caution – All CPUs installed in a system must operate at identical clock speeds.

Removing and Installing a CPU Module

Before removing or installing CPU modules, read the section "About CPU Modules"
in the Sun Enterprise 250 Server Owner's Guide.
2 Sun Enterprise 250 Server Product Notes • February 1999
Part Number
501-4857 or 501-4278
501-4849 or 501-4196
501-5237