Thanks, i always thought they drew more than that. Regards Stuart Bob Blick wrote: > > At 07:42 AM 9/19/99 +1000, you wrote: > >Thanks for that I'll give it a try. Do you know aprox what sort of > >currents a mother board would need to draw on it's power rails, I'm > >running a P100 but have no documentation for the motherboard. > > Hi Stuart, > > I tested my motherboard a lot. There is almost no load on anything but the > +5 volts. About 4.5 amps with a P90. With a P133 or AMD K5-75 only 3.75 > amps. Those were with bus and voltage settings as specified by the > individual chips(I know the K5 was VRE voltage and the P133 was standard, > but I forget what the P90 wanted) 50mhz bus on the K5, 60 mhz for the P90, > and 66 mhz for the P133. > > The motherboard is an old Tyan Titan III(lots of chips!) > > Cheers, > Bob