Sun Microsystems Enterprise 10000 System Upgrade Instructions page 3

Installing 336-Mhz Processor
Modules into a Enterprise 10000
System
Introduction
This document provides the service provider with the information necessary to
replace 250-Mhz processor modules with 336-Mhz processor modules on a system
board.
Because of processor modules must be the same speed, all domains must be power
off. Additionally, the clock multiplier must be changed via the SSP.
This document contains the following sections to assist you with installing processor
modules on your Enterprise 10000 system.
Powering off a system board
Removing a system board
Processor module removal
Processor module installation
Installing a system board
Powering on a system board
Restoring the thermal calibration information using SSP version 3.0
Changing the clock multiplier
1