IBM AT power supply case/cooling question

From: Chad Fernandez <fernande_at_internet1.net>
Date: Wed May 1 10:36:35 2002

Tony Duell wrote:
> These generally do get slower as you reduce the supply voltage, but there
> is generally a voltage below which they don't turn at all.

I tried the fan on 12volts and it did seem to work fine. I was worried
that maybe the fan would over heat if it were running continuosly. I
tried slowing and AC motor down once, and it overheated very quickly :-)

>
> Any reason not to use a real 12V fan? I suppose if you already have a 24V
> fan and the current it needs is low enough you could connect it between
> the +12V and -12V lines from the PSU. But the -12V line can't generally
> supply that much current.

Yes, I have thw 24v fan already. Unfortunetly, it won't fit the
space..... it's too big :-(

Chad Fernandez
Michigan, USA
Received on Wed May 01 2002 - 10:36:35 BST