Help: 14 pin psu

waveshark · 10-13-2006, 12:09 AM

Hi everyone
this is my first post. I am starting a carputer project and have run into a problem. I got a computer yesterday and ordered an opus dc-dc power supply. the problem is that the computer seems to have a psu with a 14 pin connector onto the motherboard. I think that the dc-dc is a 20 pin can i get an adaptor or something?

Thanks for youre help guys

DarquePervert · 10-13-2006, 06:29 AM

Doubtful. I'm willing to bet you have an HP or Dell SFF unit.
They have motherboards that don't comply with the ATX standards.

I could be wrong, but you don't give us any inforomation about what hardware you intend to use.

waveshark · 10-13-2006, 07:14 AM

Hi
thanks for the reply its a Compaq i bought it off ebay. I think i may have cooked it tonight i was soldering two wires to the switch so i could hook up my DC-DC power supply and for some reason when i press the power button it turns on but then goes off a couple of seconds later. Ever heard of this? I think i might just buy another computer with the right PSU and go from there. Any suggestions on a computer (im on a budjet so around $150 is good)

thanks

vortechs2k · 10-13-2006, 09:08 AM

Go the the manufacturer's website and find the pinouts for both your computer and power supply. then try digikey.com for connectors to make a custom cable assembly.

waveshark · 10-13-2006, 09:14 AM

thanks. iv'e got all the pinouts now. But have managed to make another mistake. I ordered am opus 80w dc-dc yesterday not realiing that it only puts out 12v (can't win) they don't do refunds so what are my option

john05srt4 · 11-08-2006, 02:59 PM

Fix this yet? I have the same issue

fastfu · 02-08-2007, 07:43 AM

i have the same problem too, could you post up the pinouts ?

JYahn · 02-08-2007, 01:21 PM

I am in the same boat as everyone else in here but I havent received my unit yet and I have not bought a PSU yet either. The pinouts though are described in this thread: http://www.mp3car.com/vbulletin/showthread.php?t=21812 at the VERY BOTTOM there is 2 .pdf files the bottom one has the pin out readings and also shows how to hook it up to a m1-atx although with the newer p3 SFFs you are prolly going to need a m2-atx PSU. I have not started on my carPC other than software so I have not confirmed this yet.

it is really nice though that as soon as I start posting questions about my PSU issues that 3 other post come up about the same thing.