On Sun, May 08, 2005 at 10:06:27PM +0200, Malte Dehling wrote:
> 
> I've been running NetBSD 1.6 and 2.0 on my SparcStation 20 with a 50MHz
> SuperSparc without cache (501-2708-072152) for a long time and I never had any
> problems. Last week I got 2 75MHz SuperSparc II CPUs with 1MB cache each
> (501-2520) and as my prom rev is 2.22 (minimum required according to
> http://mbus.sunhelp.org/systems/sun/ss20.htm) I expected them to work without
> problems, which was not the case...
> 

OK - the prom meets the minimum spec.  Perhaps your MBus speed has
been locked, that could cause some grief.  Check the jumper J1401
(under the MBus 0 slot) and make sure pins 2&3 are jumpered - this
will set the MBus speed to whatever is in Mbus slot 0.

If you can you may want to get the Sun document 802-2566 which is the
install manual for a SuperSPARC II in a SS20

-- 
Brett Lymn