[Gllug] [OT] Odd PSU / connector

general_email at technicalbloke.com general_email at technicalbloke.com
Mon Dec 7 07:06:14 UTC 2009

Christopher Hunter wrote:
> On Sun, 2009-12-06 at 14:11 +0000, general_email at technicalbloke.com
> wrote:
>> 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!
> C.

Hi Christopher,

There manufacturer "Advansys" make no mention of that model on their
website, from what I understand it's circa 2004. It's exactly the same
as this one listed on ebay (perhaps literally)...


I found a bunch of PSUs with the right plug on ebay but the ones that
look chunky enough are about £40 a pop and there's a bunch of different
wirings and voltages out there so I'm loath to risk it without some more
concrete info / facts.

I haven't had chance to call the company in office hours yet and there's
still a slim chance the guy who gave it to me might find the PSU (he
said it was his ex flatmates and he remembers it working at some point)
so I'm still holding out some hope. Thanks for your offer of helping me
build a PSU, I may well take you up on that if I ever determine the
voltage and polarity it uses :)


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