PSU & filling a waterloop

Soldato
Joined
7 Jun 2010
Posts
7,166
Location
Sussex
hey guys, just thought, i'm building a waterloop over the next few days and it's dawned on my about needing the psu working to pump water through the loop but without my comp actually being turned on

i've seen some people with a little loop of wire? in two ports of the 24 pin atx socket, what sort of cable/wire is this? and what pins do they plug into?, also should i have any of the main power leads connected, IE gfx 4 pin cpu?
 
any wire will do, bridge a green and any black wire on the 20/24pin make sure EVERYTHING is disconnected apart from the pump on the molex.

1. turn the psu off at the wall
2. turn offthe switch on the back
3. put the wire into the pins green and black.
4. turn on at the wall.
5. fill the loop to the best of your ability, hold the res higher than everything else. gravity should do the rest!
6. when your satisfied most of the loop is filled run the pump by turning on the power supply with the switch at the back. DONT run the pump for too long, you want the pump to force the larger air bubbles out to purge the loop.
7. turn off pump
8. refill / top up res
9. repeat 6,7,8 until your happy the loop is filled and that the LARGE bubbles are gone.
10. the little bubbles will take time to go, dont worry about those. the pump will quieten down when the air is gone.
 
You could always just build it, check your connections are secure and fill it first go. I've never done the "bleed first, then install" method that is recommended and never had a leak in the 8 years or so that I've been watercooling. Seems like too much hard work to me.

If you do take this advice and have a leak and it destroys your gear it's not my fault though ;)
 
Leak testing is most definitely the best way to go imo.

I have an old crappy psu that I use for my pumps when it comes to filling my loop, maybe it's just me but when I set my wc up properly the second time around my BITSPOWER 90degree rotary fittings were leaking like crazy luckily the rads were fitted in the bottom of my case (tj07) and I never had my psu inside the case so all the water that leaked never got anywhere near my hardware, changing my fittings out to rotary 45s sorted the leaks out though.
 
There's little merit in leak testing outside the case only to have to dismantle it to fit in the case again anyway. Build it in the case and leak test. I use kitchen paper towels under every watercooling component, it's fairly easy to see where any water drops have happened, even if it subsequently dries out.
 
Back
Top Bottom