The multiplier is set by the processor, not the motherboard. I have seen many reports of people running PIII 850s in the BH6. I chose the cheap was out, a Celeron 566@850 for about $75 at todays prices. It gives about PIII 700 performance at 1/2 the price or a 700. I would hate to buy a PIII 850, then have the BH6 fry because it can't supply the amount of current needed by these fast processors. You would have an expensive processor (about $200 with adapter) that worked as well as a $80 Duron. For the same $200 you could get the Duron and a "modern" motherboard with fast 4X AGP, 100ATA drives etc. Rick