[Coco] ATX PSUs (was: OSTerm)

[steve]

Usually hooking the powersupply up to a hard disk is enough of a load, so 
an old unused drive could be used for test purposes. A dummy load of course 
could be rigged up as mentioned in a previous message. I can't imagine 
going through the trouble of repackaging a Coco into a PC case unless it 
was with a Multipak, disk controller and possibly a hard disk...I would 
think that would be plenty of load for a PC powersupply.

----------------------------------------

From: "Andrew" <keeper63 at cox.net>
Sent: Thursday, March 19, 2009 8:18 AM
To: coco at maltedmedia.com
Subject: Re: [Coco] ATX PSUs (was: OSTerm) 

> Message: 2
> Date: Wed, 18 Mar 2009 11:07:33 -0600
> From: Willard Goosey 
> Subject: Re: [Coco] OSTerm
> To: CoCoList for Color Computer Enthusiasts 
> Message-ID: <20090318170733.GA29282 at virgo.sdc.org>
> Content-Type: text/plain; charset=us-ascii
> 
> On Wed, Mar 18, 2009 at 12:50:21PM -0500, Bill wrote:
>> Does anyone have a good copy of OSTerm? I downloaded one, but when I 
copied
>> it to a Coco disk and tried to run it, all I got was OK.
> 
> Unless there's multiple programs called OSTerm, it's an OS-9
> program...
> 
> BTW on my CoCo, all the disk drives are in an old PC case. Works
> fine. You may need to leave the PC motherboard in the box and
> connected to power just to draw a minimum load on the power supply.
> 
> Willard

Willard,

This is kinda OT for this list - but your statement "You may need to 
leave the PC motherboard in the box and connected to power just to draw 
a minimum load on the power supply." - isn't correct. The PSU needs to 
see a load, yes, but it doesn't (and shouldn't) be a PC motherboard, 
unless you have built a "dual machine" box, I suppose. For ATX PSUs, you 
just need to hook up the sense lines properly, and hook a small load up 
to the voltage lines. There are several articles on the internet about 
how to do this (useful if you want to test an ATX PSU without hooking it 
up to a good mobo and potentially frying it if the PSU is really wonky).

Just thought I would pass this info along...

-- Andrew L. Ayers, Glendale, Arizona

--
Coco mailing list
Coco at maltedmedia.com
http://five.pairlist.net/mailman/listinfo/coco