I went to a clearance sale at a computer store.
There I bought a Jetway mainboard, new still in box for $5.
It is AM3 and I had a few CPUs I could put in it.
The specs on Jetway website stated it supported quad-core up to 95W.
HOWEVER, at the back of the manual is an addendum imploring user to
to run a CPU drawing more than 65W, as it has only 3-phase power
and MOSFETs may be cooked.
No wonder it had been sitting unsold for years.
Not a bargain after all!