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Should I split the loop into two?

post #1 of 17
Thread Starter 
I'm getting a couple of new pumps today to help the flow running (two 35Xs).
This means I will have my D5s available.
My reservoir has 4 slots (3 in/out and 1 in) which I can utilize.

My current loop is res->pumps (2xD5s dual bitspower top)->mobo SB->cpu->mobo NB->4 gpus->3 radiators (gtx360)->Res.

My gpu temps are very low considering. Load at 65c (with 1.175v), idle at 30c.
My CPU idles at 30c at 1.55v. but at load, it goes up to 75c.

So, should I change the loop, and put the CPU alone on a one of the GTX360 with the D5s and the GPUs on 2 radiators, or just one loop, and the new pumps will help lower the CPU load temps?

I'm also considering getting a 4th radiator like the RX360 for the CPU alone instead of using a GTX360 from the GPUs.
Yeah, I'm nuts. Need a support group for updating junkies
Just finished the system a bit over a week ago, and already looking for upgrades.

WHEN WILL IT END????
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post #2 of 17
Can I borrow some cash..please?
But seriously, usually increasing flow rate and multiple loops does not help temps much but your case is an extreme one. Are your temps currently high and/or limiting your OCs? For instance, in my case my chip is simply at it's limit, so adding anything would be pointless.
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post #3 of 17
Just re-read your post and I see you had temps posted already, give me a break it's a bit late over here heh.

It seems to me you're temps aren't the limiting factor in your OCs so I'd hold off on upgrading right now if I was you. However, more rad would be more beneficial then more flow/running multiple loops IMO.
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post #4 of 17
Thread Starter 
Well I have two issues I'm not 100% happy with.

1. Flow is very low. The system is way more restrictive than I thought I would be.
It causes bubbles inside the GPU blocks which aren't coming out. This is why I'm swapping the pumps in the hope it helps.

2. I want a bit lower temps for the CPU.

I'm not sure just swapping the pumps will be enough. This is why I'm considering either cutting the loop into two, or adding another radiator.

Another option is combining it all to one bit loop with 3/4 pumps, and another radiator.
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post #5 of 17
you got everything to, put the gpus on its own loop with the 2 rads, cpu with 1
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post #6 of 17
If you want less restriction get rid of the chipset cooling no reason to have it.also what fans are you using those rads require fans like the kaze 3000rpm.

Res pump rad cpu Nb sb rad rad gpu gpu..
Is how I would do it.
Adding more rads won't help.
Ambient temps are important too
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post #7 of 17
Quote:
Originally Posted by Juggalo23451 View Post
If you want less restriction get rid of the chipset cooling no reason to have it.also what fans are you using those rads require fans like the kaze 3000rpm.

Res pump cpu Nb sb rad rad gpu gpu..
Is how I would do it.
Adding more rads won't help.
Ambient temps are important
This. Chipset cooling is incredibly restrictive, more so than basically every GPU block and most CPU blocks. Chipsets range from 2.5-4 PSI Drop, compared to the average of <1 PSI for GPU blocks and 1.5-1.9 for CPU blocks.

Also, how are the GPUs configured, Parallel or Serial?
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post #8 of 17
Thread Starter 
Quote:
Originally Posted by charliehorse55 View Post
This. Chipset cooling is incredibly restrictive, more so than basically every GPU block and most CPU blocks. Chipsets range from 2.5-4 PSI Drop, compared to the average of <1 PSI for GPU blocks and 1.5-1.9 for CPU blocks.

Also, how are the GPUs configured, Parallel or Serial?
I'll consider that, tho I don't really want to take them off for now. The chips run at 30c which is pretty nice over the 50-60 which was like I had on the R3E.

The GPUs are serial, as the pumps couldn't push the water into the last block in parallel.
There is a 7c difference between the last and first GPU at full load (54c first, 61c last).

Quote:
Ambient temps are important too
My ambiance is 21-22c.
The water temps in the res, are at 21.5-22c when the system is at idle, 24.3c when I push the whole system. Usualy its around the 23c.


Also if I am adding another radiator, I will also add another pump to help with the flow (or two, as the D5s I have are on a dual head).
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post #9 of 17
Quote:
Originally Posted by Defoler View Post
I'll consider that, tho I don't really want to take them off for now. The chips run at 30c which is pretty nice over the 50-60 which was like I had on the R3E.

The GPUs are serial, as the pumps couldn't push the water into the last block in parallel.
There is a 7c difference between the last and first GPU at full load (54c first, 61c last).



My ambiance is 21-22c.
The water temps in the res, are at 21.5-22c when the system is at idle, 24.3c when I push the whole system. Usualy its around the 23c.


Also if I am adding another radiator, I will also add another pump to help with the flow (or two, as the D5s I have are on a dual head).
I wouldn't bother adding a radiator or another pump. You're already at a 2.5C water-air delta, so even if you doubled the amount of radiators you currently have your temperatures would only decrease 1.25C. Adding another single 360 will provide no noticable change in temperature. Also, radiators (except for the GTX series) don't add any meaningful restriction so don't worry about adding another pump.
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post #10 of 17
the rads are enough for your system adding anther rad maybe will get your temps down by 2c on each gpu,cpu...

adding a pump might help I read that gpu temps on water cooling is massively effected by the flow rate...

amm but adding anther pump or 2 wouldn't help the temps so much to justify the cost so I dont think its a wise move... if you want your temps to be allot better the only way to achieve that is to upgrade to some extreme cooling... Phase cooling...
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