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Loop questions

A

adi

Limp Gawd
Joined
Aug 1, 2002
Messages
399
I'm on my third rebuild of my WC setup, mostly rebuilding it due to the inability to bleed the system properly. Since there was air I could not get out, it got annoying to hear the gurgling of the system. (Case is a Lian Li V2000, had a 2x120 radiator in the middle, barbs pointing up, and another 2x120 on the top, barbs pointing down.)

So my new thoughts have both radiators below the mid-line and the beginning of the loop going:
cpu WB -> rad1 -> gpu WB -> ?

Now, the path would normally be:
gpu WB -> rad2 -> reservoir -> pump

However that would have a couple of lines going against gravity, as well as lines doubling back.

What I was thinking about doing is:
gpu WB -> reservoir -> pump -> rad2 -> cpu WB

My other option is:
gpu WB -> reservoir -> rad2 -> pump -> cpu WB

Which would then have the radiator feeding the pump, which I have read isn't ideal due to the risk of starvation. The pump is a MCP 655.

So the questions are: assume the pump can handle the extra doubling back and do it right? Assume that the pump can handle the heated water from the GPU before it hits a radiator? Assume that once everything is bled properly, the pump won't starve getting its feed from a radiator?

Radiators are swiftech, GPU block is EK, CPU block is DD.
Pertinent system specs:
i7 920 @ 4ghz
GTX 480 @ stock

No plans to upgrade anything anytime soon. Temperatures were fine with the old setup, just too loud for my tastes. Oh, and the Feser Triebwek 120x55 fans have the most annoying droning sound in the world.

Thanks in advance folks.
 
adi said:
So the questions are: assume the pump can handle the extra doubling back and do it right? Assume that the pump can handle the heated water from the GPU before it hits a radiator? Assume that once everything is bled properly, the pump won't starve getting its feed from a radiator?
Click to expand...

1. Pump will be fine, and 'going against gravity' isn't anything you should worry about.

2. The heat would be fine.

3. As long as you've always got water moving into the pump, also fine. Although I'd probably still put the res before the pump regardless.


Just go with whatever requires the least amount of tubing and provides the cleanest route.
 
Thanks, got the new setup up and running. New res, new CPU wb. System is a lot quieter, and CPU temps have dropped ~ 10-15c from the old DD waterblock.
Prime95 and furmark going:
Code: 
           idle   5min    10 min
CPU         36c    55c        57c
GPU         35c    53c        55c

Pictures from bleeding and leak testing:
4954564605_9f3044c71f_z.jpg

4955153314_a7eb32a056_z.jpg


Currently only have one fan on the lower/front radiator, need to figure out how to ghetto attach another fan to it.
 
i always do my loops like this when its one single loop

rad>cpu>rad>gpu>pump>resy>back to 1st rad. or you could flip the pump and resy
 
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