Looping driving me loopy

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Hi!

I'm waiting on a etailer to stock 3 HD6970 blocks (*cough OCUK! cough*) but I don't want to use the stock cooler as its...well, you know useless.

Soo I put together a CPU only loop for now with my XSPC RS360, Frozen Q "T-Virus" 150ml Res, EK Supreme HF CPU Block and a Laing DDC350 10W pump with EK top.

I filled the loop so I cant get anymore coolant in the res but when I switch the PC on all the water drains from the res and flows through the loop, the pump isnt really getting enough coolant but cant see a way to top the res up.

Below is a picture of the loop order

looprq.png


the res has a "Q" fitting at the top which I use to fill the res (also has the inlet from the 360 rad).

Any idea's on a better loop order that won't result in 150ml of coolant flooding back into the res when the pump is off?

Thank you!
 
If I am not mis-understanding you, it sounds like you need to put more fluid in.

How have you been filling the res? Are you just turning the PC on?

Or have you isolated the pump so you can pulse it on and off, allowing you to maintain liquid in the res as you fill the loop?
 
If I am not mis-understanding you, it sounds like you need to put more fluid in.

How have you been filling the res? Are you just turning the PC on?

Or have you isolated the pump so you can pulse it on and off, allowing you to maintain liquid in the res as you fill the loop?

I've been filling the res with the top opening on the "Q" fitting which is connected to the top of the res when the PC is off. I cant fill the loop when the pump is on as coolant will gush out the "Q" fitting when I try and fill it.

Just after a way to fill more coolant into the res or a better loop order that doesnt have this problem.
 
Ok, having done some reading;

The reservoir is equipped with 1/4" threads for inlet and outlet. A third 1/4" threaded opening, which is sealed by a silver screw cap when shipped, can be used for filling with e.g. a Fillport.

I suggest that you orientate the case/res in a manner that allows you to use the third outlet as a fill port with out dismantling your loop.
 
Use the two 1/4 threads at the bottom, one for an inlet, one for an outlet, use the top one to fill up your res.

Then pulse the psu on and off to fill up your loop.
 
Best thing to do is have all your psu connections disconnected and you a pin on the main one Link Here
this way the only thing on is the pump :) also good if your wanting to do a leak test

I would if you can take the Res off the top till u got the loop full as any liquid that makes it to the res will flow down again.
Or another way is to till your case forwared making it harder for it to flow back :P
 
Having looked at their website this res appears to have only one fitting at the "top" end, and 2 or more fittings at the "bottom" end. You appear to have it mounted with the end with the single fitting uppermost in the case, with a Tee fitting I guess in the tube going into this top port as a fill line. If this is the case what you have there is essentially a T line, the res may as well not be there. If when you are filling the T line is not vertical then air cannot get out of it and water will be pumped out of it as well as you seem to have found.

The solution is to use the bottom fittings for inlet and outlet as minicle has suggested, or turn the res upside down and use the end with the single fitting as the outlet and one of the fittings at the other end as inlet, with one of the other fittings at that end as a fill line. This should allow the air out as you are pump blip filling.

Turning it upside down should allow you to fill it with it mounted like you want, but I personally still wouldn't like it as any air left in the loop air is likely rise up out of the res and into the rad when you switch the pc off. The inlet/outet at the bottom is the best idea.
 
Yep, altho I'm half tempted to try res > rad > pump > cpu, as most water blocks these days want maximum flow.
 
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