System Software Requirements; Main Logic Board Jumpers - Sun Microsystems Enterprise 250 Product Notes

Caution – Before you install any CPU module, read the section "Main Logic Board
Jumpers" on page 3, and verify that the jumper setting is correct for the speed of the
CPU module you are installing. Serious system damage can result if your main logic
board clock mode jumper is set incorrectly.
To remove or install CPU modules in the Sun Enterprise 250 server, follow the
instructions in the sections "How to Remove a CPU Module" and "How to Install a
CPU Module" in the Sun Enterprise 250 Server Owner's Guide.

System Software Requirements

The Sun Enterprise 250 server requires the Solaris™ 2.6 Hardware: 5/98 operating
environment. The 400-MHz UltraSPARC II CPU module is supported by the Solaris
2.5.1 Hardware: 11/97, Solaris 2.6 Hardware: 5/98, and Solaris 2.7 operating
systems, or a subsequent compatible Solaris release.
To check which version of the operating environment is installed on your
Enterprise 250 server, examine the file /etc/release. The file should contain the
text "Solaris 2.6 Hardware: 5/98" or identify a subsequent compatible Solaris
release.
Note – Support for the Solaris 2.5.1 operating environment is provided through the
Sun Enterprise 250 Supplement CD (included with your Sun Enterprise 250 server).
For additional details, please see the documentation included with the Sun
Enterprise 250 Supplement CD.

Main Logic Board Jumpers

The following information supersedes the information presented in the Sun
Enterprise 250 Server Owner's Guide concerning main logic board jumpers:
Information about the clock mode select jumpers (J3001) have been added to the
section "About the Clock Mode Select Jumper."
Sun Enterprise 250 Server Product Notes 3