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The importance of the "order" of your loop? - Page 2

post #11 of 110
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Still nothing conclusive it seems.

Res was always going to be right before the pump and there is going to be a radiator before each block no matter what. The difference is that one of the radiators is far superior and its going to be a lot less clean (require more tubing/bends), to get that one before the CPU than the other way around.
post #12 of 110
Quote:
Originally Posted by Shrimpykins View Post
You sir just made a long useless post (very informative, but useless), unfortunately, because 90% of the people traveling by who read your post and who believe that loop order has 0 effect whatsoever already have their minds made up and listen to the logic they create in their minds rather than actual science.

And to top it off. Most of them will finally admit they are wrong if you badger them down with enough physical evidence. And then the "Yeah, well it still doesn't make a big difference" argument comes along. No way to win this uphill battle.
Not interested in winning, as long as the facts are out there people that choose to be reasonable will appreciate it.
post #13 of 110
well considering automotive cooling systems, a thermostat controls how cool the water gets in a rad before it enters the block, if you remove the thermostat, the water will be flowing consistently, until the temp reaches an equilibrium between the heat transfer from the air passing the rad and the coolant going thru the block
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post #14 of 110
If the Ambeints stay the same, and the Rad dissipates the same amount of heat, the fans stay at a constant speed, and the Proccessors dump a constant amount of heat. Then what variable is changing if you change loop order?

Assuming your loop is low flow( very slow water) then yes changing it to be simplier will increase flow rates. But if it's high flow then your not gonna see a noticable difference just do to the fact that your aren't improving the flow that much, were as you would make it flow 50% faster on the slow loop, the fast loop may get a 1% increase.

Any arguments saying that loop order about block and rad placement are null if you think in the terms that the radiators will always transfer a certain amount of energy to the air and the proccessors will dump the same amount of energy into the loop.

Neither one of those things should be changed by loop order unless it majorly effects the flow rate.
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post #15 of 110
The only fixed order in a loop is res then pump, all else is down to personal choice and the loop design.
The only caveat I'd add to that, is that when you add GPUs to the mix, you really want to design the loop to ensure the CPU gets the coolest possible water. It doesn't really matter vastly if the water coming out of the GPU is nearly 80c so long as it's a heck of a lot cooler by the time it's trying to cool the more heat sensitive CPU again.
My loop is res->pump->cpu->rad->res which is wrong in many people's eyes, but it works, and with a cpu only loop the only real heat load is the CPU, so the water cools in the rad, then cools a little more in the res before being pumped back to the block...
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post #16 of 110
Quote:
Originally Posted by 86 5.0L View Post
well considering automotive cooling systems, a thermostat controls how cool the water gets in a rad before it enters the block, if you remove the thermostat, the water will be flowing consistently, until the temp reaches an equilibrium between the heat transfer from the air passing the rad and the coolant going thru the block
I believe the thermostat restricts flow in a cold motor until it reaches operating temperature ( which comes in handy in winter here) after that
it's wide open. The water coming out of the block is much hotter than water from the radiator
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post #17 of 110
Quote:
Originally Posted by Syrillian View Post
From my experience so long as the reservoir is prior to the pump, the loop order will not impact the performance very much as the liquid throught the loop will equalize in temperature.

But.... I still try to place the radiator(s) prior to the block(s).

This ^^^ I did Reservoir, pump, 480mm rad, CPU, mobo blocks, GPU1, GPU2 then reservoir.
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post #18 of 110
Quote:
Originally Posted by 88EVGAFTW View Post
This ^^^ I did Reservoir, pump, 480mm rad, CPU, mobo blocks, GPU1, GPU2 then reservoir.
same here

res> pump> 2x 360 rads> cpu> board block> gpu 1> gpu 2> gpu 3> res
    
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post #19 of 110
Quote:
Originally Posted by pgmoney View Post
same here

res> pump> 2x 360 rads> cpu> board block> gpu 1> gpu 2> gpu 3> res
What are your GPU temps under load?
post #20 of 110
same question as above... why didn't you splint your gpu to its own rads since you have 2.. and go Res - pump- 360 - cpu - 360 - gpu gpu gpu -res
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