no why would it need to do that? If I put one in my 64 bit slots the machine won't boot. bkw On Sun, 8 Feb 2004, Soragan wrote: > Hi all, > > Just a quick question > > Does digium x100p support 3.3v pci (64 bit 66mhz) ? > > > > Regards, > > > > Soragan > > > >