Re: //gs Power Supply Died On Me ... Need Help/Advice

[rubywand@aol.com (RUBYWAND)]

In article <49ipt0INN3n6@sunshine.cis.ohio-state.edu>,
forest@cis.ohio-state.edu (Forest Hursey) writes:

>
>My //gs powersupply died last night ... the Ramfast rev D SCSI card I
>ordered finally came in and when I installed it and turned on my
>computer it made a loud popping noise then hissed for a little
>bit. Now there is no power to my computer at all. I am reading
>absolutely no voltages on the connectors for the logic board. I am
>wondering if anyone elses has experienced anything similar.

    Yes. The usual suspects are near the AC input. Check your ON/OFF
switch. These fry from time to time. Check the globar resistor (usually a
black, disk-shaped thing in series with the AC input).  Sometimes globar's
break or pop off a lead.  Check the electrolytic caps near the AC input
side of the supply. These sometimes short and then blow. (The POP and
hisssss sounds are a good match for a cap failure.)

    Any of the above problems could result in no power at the outputs.
Probably, your fuse is okay; but, check it, too.