i am running Celeron 300 OC to 450 for 2 yrs now, time to upgrade, i dont know if my ram can handle 133mhz , so my choice limited to 100 FSB. my question is can i just get a slot1 PIII 850Mhz to my BH6 Rev 1.0 or i have to get a socket 370 CPU 850/900Mhz and a socket apapter card, coz i know new PIII runs on 1.6V/1.7V and celeron runs on 2.0V, thanks help