10-2 Sun Ultra 60 Service Manual August 2001
10.1 CPU Module
Toremove and replace the CPU module, proceed as follows.

10.1.1 Special Considerations for Systems With 450 MHz

CPU Modules

If you plan on installing either the Solaris™ 2.5.1 or Solaris 2.6 operating
environment, you must install it using the Operating Environment Installation CD
included with your new system. During the installation process, this CD installs
certain software upgrade patches that support these Solaris releases running at the
450 MHz CPU speed.
These patches are not required if you areusing Solaris 7 or later software.
The system’s OpenBoot PROM revision level must be 3.17 Version0, or later, to run
a 450 MHz CPU module. The OpenBoot PROM revision level is displayed in the
banner at the top of the screen when you boot the system, or from the OpenBoot
prompt you can display the banner by typing.
For installation instructions, refer to the CD insert included with the CD.

10.1.2 Removing the CPU Module

1. Power off the system unit.
See Section6.2, “Powering Off the System Unit” on page 6-3.
2. Remove the side access cover.
See Section7.1, “Removing the Side Access Cover” on page 7-2.
Caution – Useproper ESD grounding techniques when handling components. Wear
an antistatic wrist strap and use an ESD-protected mat. Store ESD-sensitive
components in antistatic bags before placing them on any surface.
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