IBM AT power supply case/cooling question

From: Richard Erlacher <edick_at_idcomm.com>
Date: Mon Apr 29 15:09:27 2002

I doubt you'll have any trouble with the unit if you reverse the fan, i.e.
have it blow in rather than suck out the cooling air supply for your computer.
That way, assuming the top's on the enclosure, air will flow into the computer
through the PSU, and, if you're clever, a coarse filter, and then travel out
through the front-loading peripherals rather than coming in through them and
depositing the dirt in them.

You may want to put a fan on both sides of the filter, BTW. If you're at all
worried about EMI, it might be reassuring to put some ferrous metal screen,
the sort used to repair, or scavenged from, OLD screen doors, not the new
ones, over the PSU's larger openings.

Dick

----- Original Message -----
From: "Chad Fernandez" <fernande_at_internet1.net>
To: <classiccmp_at_classiccmp.org>
Sent: Monday, April 29, 2002 11:54 AM
Subject: IBM AT power supply case/cooling question


> I'm using the case from an IBM AT to build a socket 7 Linux machine.
> The AT wasn't complete, and the case is a little rusty on it's hood, so
> it wasn't a good example to restore to original.
>
> My question is this..... can I safely leave the PS cover off? If I add
> a few of the factory screws the PS case/chassis is still quite solid, it
> just does have the cover on the top, or by the drives. Basically, it
> removes two out of six sides. I'd want to do this for a bit more
> cooling, since the fan would have less obstruction. Plus, I think it
> looks lind of cool too :-) Would I have problems with EMF emmisions
> effecting the computer's operations?
>
> The main case cover would be installed.... would I have other EMF
> troubles, if I leave the top of the PS off?
>
> Chad Fernandez
> Michigan, USA
>
>
Received on Mon Apr 29 2002 - 15:09:27 BST