No Mixing Of Cpu Stepping Versions; Verifying The Stepping Version Of The Cpu - Sun Microsystems Sun Fire V40z User Manual

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4.4.2

No Mixing of CPU Stepping Versions

Two different versions of the Sun Fire V40z server have been released with CPUs of
different stepping versions.
If you order a CPU to add or replace a CPU in your server, do not mix CPUs of
different stepping versions.
Caution – A new heat sink ships with the stepping version "E" CPU. Ensure that
you do not use an old heat sink on a stepping version "E" CPU.
Before ordering a new or replacement CPU, verify the stepping version of your
CPU(s) and then order the same stepping version.
Due to the power requirements and height restrictions, the stepping version "E"
CPUs work only in the Sun Fire V40z server release PN 380-1206.
In a two or four CPU configuration of the Sun Fire V40z server, all CPUs must be the
same stepping version and the same speed.
4.4.2.1

Verifying the Stepping Version of the CPU

You can verify the stepping version of the CPU in a local server or on a remote
server.
Verifying the Stepping Version in a Local Server
To verify the stepping version of your CPU(s) in a local server (with keyboard,
video, and mouse attached):
1. Power on or reboot your server.
A message similar to the following example appears on the screen, and the
memory test begins.
This sample shows the output for a Sun Fire V40z server.
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