[simpits-tech] Power Supply

[Robert Bibber]

No external switch. 
I connect PWRGOOD to Ground and nothing happens. I connect PSON to ground and the fan spins for half a second then stops. I've tried various combinations with no effect. 

Here is a link to the pinout diagram I am using (http://members.csolutions.net/dougm/images/dell/plugatx.htm)
The one on the left matches the plug on my Dell PS - the one on the right is a standard ATX plug. 

One thing I noticed is that an ATX plug has 3 3.3v pins and the Dell has no 3.3v. On the ATX the 3.3v wires are orange, the Dell PS has three orange wires on a separate plug. Do you think this could have anything to do with it?


Rob Bibber
Karob Siberian Sleddogs
http://www.karobsiberians.com
----- Original Message ----- 
From: "Heidner, Troy W" <theidner at ku.edu>
To: "'Simulator Cockpit tech list'" <simpits-tech at simpits.org>
Sent: Wednesday, September 24, 2003 12:09 PM
Subject: RE: [simpits-tech] Power Supply


> Rob,
> 
> All you should have to do is connect the PWRGOOD line to a GROUND line and
> that's it.  You should be able to tell that you were successful because the
> power supply fan should begin running immediately.  When the PWRGOOD line is
> pulled low, +/-12V and +5V should be available from any of the connectors.
> Many ATX power supplies also have a manual power switch on the back.  Make
> sure that it is turned on.  Other than that, I can't imagine what else could
> be wrong.  I use this method on the bench for quick power checks all the
> time.
> 
> Troy
> 
> > -----Original Message-----
> > From: Robert Bibber [mailto:robert at karobsiberians.com]
> > Sent: Wednesday, September 24, 2003 10:28 AM
> > To: Simulator Cockpit tech list
> > Subject: Re: [simpits-tech] Power Supply
> > 
> > 
> > So if I connect PWRGOOD to COMMON and PSON to ground it should work?
> > Rob Bibber
> > Karob Siberian Sleddogs
> > http://www.karobsiberians.com
> > ----- Original Message ----- 
> > From: "Heidner, Troy W" <theidner at ku.edu>
> > To: "'Simulator Cockpit tech list'" <simpits-tech at simpits.org>
> > Sent: Wednesday, September 24, 2003 11:26 AM
> > Subject: RE: [simpits-tech] Power Supply
> > 
> > 
> > > 
> > >  
> > > > When plugged in, the only pin with power is #11 (PSON). I 
> > > > tried connecting this to pin #5 (PWRGOOD) with no results. No 
> > > > other pin has power. (I have to do this stuff here at work 
> > > > because I FRIED my multitester at home and they have a NICE 
> > > > one here!).
> > > 
> > > The trouble here is that the PWRGOOD line needs to be 
> > grounded, not set to
> > > +5v.  The PWRGOOD line is on pin #14 on a standard ATX 
> > powersupply and the
> > > line is usually green.  It needs to be grounded which can 
> > be accomplished
> > > jumping it to any of the following pins 3,5,7,13,15,16, or 
> > 17.  These lines
> > > are usually black.
> > > 
> > > The pins on the standard connector are numbered clockwise 
> > starting with pin
> > > 1 which is usually a yellow line.  It would be in the upper 
> > left corner if
> > > you are looking at the end of the connector laying 
> > horizontally with the
> > > clip down.
> > > 
> > > Hope that helps!
> > > 
> > > Troy
> > > _______________________________________________
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