[Gllug] [OT] Odd PSU / connector

Christopher Hunter cehunter at gb-x.org
Mon Dec 7 00:26:16 UTC 2009

On Sun, 2009-12-06 at 14:11 +0000, general_email at technicalbloke.com
> Hi,
> I've just been gifted a nice little compact PC via freecycle, problem is
> there's no PSU. To make matters worse it has a strange round 4 pin
> connector (1cm diameter) which I'm not familiar with, I can only assume
> its 12v + 5v. Anyone have one of these spare or know where I might buy
> one? Assuming I can't find one and I have to jerry rig my own from an
> old ATX supply is there a standard way to wire these 12v/5v connectors?
> If not is there an easy way to figure it out? I don't want to fry the thing!
> Picture here... http://www.technicalbloke.com/12v5v.jpg
> It's the connector between the PS2's and the 2.5mm audio socket.
> Apologies for the ropey picture quality but I don't have a macro setting
> on my phone.

What brand is the computer?  I had (historically) a mini-Elonex machine
that had a connector similar to - but not quite the same as - that one.
You might be able to get the info from the manufacturer's website.  If
it's 5 and 12 Volts, don't mess around with an AT PSU - you're going to
have to fake the "power good" line, and most of them don't like having
some of their rails unloaded...  If you find out what voltages you need,
I'll happily advise (off list) about constructing a suitable, simple,
safe, cheap PSU!


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