Hello Bernd,
the supported CPU Modules are listed in the [url=http://sunsolve.sun.com/handbook_pub/Systems/Ultra20/components.html#CPUMo dule]Full Components List [/url]. Even if the Ultra 20 is based on a customized Tyan Tomcat K8E S2865 mainboard, the BIOS might not support every module. Please keep in mind that a particular Stepping (E4) is required.
Michael
Cool - thanx a lot man !! I see the 180 is uspported and I will just go for
X3798A 594-2617 2.4GHz Dual Core Opteron 180 Socket 939, RoHS:Y
* 310-0078
* Heatsink, RoHS:Y
* 371-0885
* 2.4GHz Dual Core Opteron 180 Socket 939 (E4 Stepping), RoHS:Y
Thanx again
B-)