Hello,

> >cpu0 at mainbus0: 750 (Revision 2.2), ID 0 (primary)
> >cpu0: HID0 8090c0a4<EMCP,DOZE,DPM,ICE,DCE,SGE,BTIC,BHT>
> >cpu0: 300.00 MHz L2 cache present but not enabled
> 
> Is the L2 value compiled into the kernel? Isn't this from the aftermarket card?
No and yes.
I can activate the cache with the usual hard-coded kernel options, the card is a phase5, OF sees only the mainboard cache.

have fun
Michael