Power Macintosh 8600, power supply issues

#1 Mon, 14 May 2012 - 20:09 Power Macintosh 8600, power supply issues — #1

wikipedia said these were plagued with power supply issues,

i happen to have one, that came from that load of mac's i received over the weekend.

this one happens to have the Internal SCSI Zip drive, witch i have never seen before!

i plug it in, hit the power button and nothing.

does anyone know what the common fault is, in the PSU?

maybe i can take it apart and fix it?

#2 Mon, 14 May 2012 - 23:34 Power Macintosh 8600, power supply issues — #2

There is a fuse in there. Blew mine once, that's how I know.

#3 Tue, 15 May 2012 - 00:46 Power Macintosh 8600, power supply issues — #3

thanks!

#4 Thu, 24 May 2012 - 02:22 Power Macintosh 8600, power supply issues — #4

might want to check the MOSFETs before sticking another fuse in there. Otherwise, you might watch it blow again

#5 Thu, 24 May 2012 - 03:39 Power Macintosh 8600, power supply issues — #5

Never heard about power supply issues on the 8600, the 9600 also uses the same model. I have 1 x 8600 and 2 x 9600 machines and they seem to hold up ok, I only have one spare PS they are hard to come by.

#6 Thu, 24 May 2012 - 03:47 Power Macintosh 8600, power supply issues — #6

I thought the power supplies were pretty good in these. I'd reseat the processor card, RAM, press the CUDA switch for a couple of seconds.

#7 Thu, 24 May 2012 - 04:36 Power Macintosh 8600, power supply issues — #7

It was long ago, but i seem to recall that the fuse blew when i mistakenly turned the machine on with no drives connected.

It seemed odd, which is why i remember it. The machine in question was easily fixed and is still going strong.