IBM AT power supply case/cooling question

From: Chad Fernandez <>
Date: Tue Apr 30 00:06:18 2002

Ok, well after reading everyone's replies, I guess I'll reassemble it as
  produced by IBM. I didn't realize that some of those heatsinks were live.

Looking at the machine, I don't think airflow would be an issue with
this particular case and power supply. The side towards the drive bays
is mostly open and the top is very close to the back of the case cover.
      However, I'm still reinstalling it because of the electrical
hazards mentioned :-)

What I may do is poke a hole in the top of the case, and mount a big
fan. How well would a 24volt fan run on 12 volts? Since it's DC it's
fine, right? It's just slower?

Chad Fernandez
Michigan, USA

Tony Duell wrote:
> I wouldn't. There's a lot of exposed live metalwork in most PC PSUs
> (including the heatsink(s) on the chopper transistor(s). If you touch
> that it could be unpleasant or even fatal. If a stray low-voltage cable
> touches it, you'll end up blowing ever chip in the machine, most likely.
> It will disturb the airflow over the PSU components, and may end up
> making the PSU hotter!. I'd add an extra fan if you're worried about this.
> -tony
Received on Tue Apr 30 2002 - 00:06:18 BST

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