RE;what you first describe sounds like the rom update procedure ? > Hi All: > > I guess I was premature in deciding that it was the loose power cable from > the restart switches. Today, it began freezing up--got a couple of > restarts, then nothing (except the fan spins and the LED on the mobo lights > up). I reset the PMU (G4 AGP's version of CUDA) and tried it with the IDE > cable unplugged (only has a CD-ROM). It got a start-up chime but went to > some command line thing and asked if I wanted to continue to boot (type > "Mac-boot") or shut-down. The shut-down command worked, but the boot > command resulted in a dark screen same as before. > > Then, I pulled everything off the mobo except the CPU and video card > (including the modem that goes directly into the mobo--not in a pci > slot--this is the one thing I hadn't removed previously), took out the PRAM > battery and let it sit for about an hour. I tried it with just the hard > drive plugged back in, and I have a robust start-up. I figure I'll play > around with it a while (see if the freeze-up recurs), and then try putting > one component at a time back in, taking some time to play around with it > each time. > > I followed apple's procedure for testing the psu--and it's fine. Could I > have a bad PMU chip??? Is there still any chance that it's the video card? > > Thanks again. > > Joe > >
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