Powering the PSU without the mainboard - help!

Jed Shields · 9 May 2015 at 15:04

Hi guys,

I need to power up my system without the mainboard to get my watercooling back up and running. I haven't got a PSU bridging connector and so found a few pages where they describe the paperclip trick between the green and black connectors. This would be great if my Corsair AX850 PSU cables weren't all black :/ Could someone post which connectors I need to connect. As a reference, the blank connector is on the top and 5 from the right. I believe the paperclip needs to go on the bottom between pins 4 and 5?

Cheers,

Jed

stulid · 9 May 2015 at 15:06

http://en.wikipedia.org/wiki/ATX

http://en.wikipedia.org/wiki/File:ATX_PS_signals.svg

http://www.motherboards.org/articles/guides/1487_4.html

You want to look at the end of your 24pin and get it the right orientation and short green (PS ON) to black (COM).

Jed Shields · 9 May 2015 at 15:27

So 3rd and 4th from the top, right hand side according to the second pic in this link?

http://www.motherboards.org/articles/guides/1487_4.html

That doesn't appear to be working...

stulid · 9 May 2015 at 15:32

Make sure the retention clip is on the same side as the pic.

Its 4+5th pin or 3rd+4th.

Is the power switch on the rear of the PSu ON?

d_brennen · 9 May 2015 at 15:48

Some won't turn on without a load on the 5/3.3v rails...

Jed Shields · 12 May 2015 at 15:30

I couldn't get it working in the end so I ended up powering the pump by plugging it into a second PC. Worked like a charm