Re: C900 and ATX Power Supplies...

From: Marko Mäkelä (
Date: 2005-08-03 10:39:19

On Wed, Aug 03, 2005 at 03:01:59AM -0500, Bo Zimmerman wrote:
> The only thing I'm doing strangely when the ps is not under load is that I
> cross the always-on 5V line on the ATX with the Power-On line on the ATX to
> force the power supply to come on.  I suspect, perhaps, that this might have
> been the wrong thing to do.

I think it is unlikely to cause any permanent damage, unless your power
supply is a very cheap one made by some no-name manufacturer.

I accidentally shorted the +5V supply of my DVB-T recorder box
( to ground when developing a power-on-by-remote
circuit (  The power
supply shut itself down and refused to start within a few seconds.  The
next day, I opened the power supply, and the internal 10-amp fuse on the
mains side was not blown.  I soldered the fuse back in place, and the
computer worked just fine with this power supply.  It must have been
some overheating protection.

Have you tried adding a hard disk as an extra load to the power supply?


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