CPU Liquid Cooling question

[CharmedLover84]

I didn't know whether to put this here or under the PC Modifications section... so I figured here would be best.

I'm considering adding a cold-plate to my liquid cooling system to further enhance it's ability to cool the CPU better (mainly so that I can get 2.6+ to run without having some issues due to temperature just getting too high for my system's liking). Now my question is, where would be best to put it?

A: on the Radiator on the opposite side from the exhaust fan so that it's coldness both cools the radiator's fins and the cold air from it is sucked through the radiator?
or
B: On the Liquid tank

For reference, it should be noticed I have a BigWaterSE system on a Thermaltake Shark case.

What're ya'll's opinions? At first I was thinking radiator would be better but now, even though I realize it'd take a bit for it to cool down that whole tank, AKA pretty much all the liquid in the system, that it'd be better to put it on the tank due to the fact that it would then have nearly direct thermal contact instead of all the indirectness caused by having it on the radiator.

It's basically a freon unit that I'll be using, I'll simply leave the hot-side with a heatsink and fan on it and put the cold side (bare) on the thick plastic tank (or the metal finned radiator) of the system.

Basically I'm trying to figure out a way to keep my processor happier at pretty much what I've determined is it's overclocking ceiling (with my voltage being limited to 1.5Vs max) because it runs fine at the speed I have it capped at while running at maximum voltage, but after around 12 to 24 hours of operation, it tends to get a little twitchy, 'specially if the general room temperature is above or close to 80F

[cysus]

Are you talking about a peltier (TEC) cooling system? If you are then you'd just put it between the cpu and water block.

[vikeor]

charmed... DONT even bother with it... first of all the bigwater is not a very efficient water cooling system (i have one :P ) so it still wont really give u an advantage...

second, decent TECs are 300W+ and require MASSIVE cooling and ALOT of power (seperate PSU for the TEC)... i wanted to do the same thing but after i found this out i was like... screw it..

[cysus]

There are lower wattage TECs (80, 120, 180) but you'd need at least a 200-300watt PSU for any since efficiency of PSUs isn't that great (60%-75%).

[towlies high]

get a new WC setup, like the one i have. was a pain to install for me, but it works greaattt.

[vikeor]

a 240W is minimum u need... the CPU has a thermal wattage... Athlons i think are about 110W... also consider that TECs are about 60-70% efficient... TECs are measured on a temp difference scale... symboled by DELTA (a triangle) T ...

Delta T = (1 - (Heat Load/Max Cooling Power)) * Max Temp Difference

Here are a few examples with difference watt TECs cooling a modern processor which usually generate around 60+ watts of heat. Practice the formula on at least one of these examples before calculating Delta T for your own project...

1. A 40watt TEC cooling a modern processor generating 60-watts of heat.
Delta T = -34C (negative 34C). That’s an INCREASE in temperature on the cold side, so the processor would have been warmer than before! Using an under powered TEC can destroy the processor. Cooking your CPU with your TEC is NOT a good thing, avoid this common mistake.

2. A 60-watt TEC cooling a modern processor generating 60-watts of heat.
Delta T = 0 (no change in temp). Congratulations, you’ve accomplished nothing!

3. A 176-watt TEC cooling a modern processor generating 60-watts of heat.
Delta T = 46C. That’s a decrease in temperature on the cold side, making the cold-side 46C cooler than the hot-side. Not bad.

4. A 226-watt TEC cooling a modern processor generating 60-watts of heat.
Delta T = 51C. That’s a decrease in temperature on the cold-side, making the cold-side 51C colder than the warm-side. Even better, but it took a lot more energy from the TEC (28% increase from 176-watt TEC) to get an additional 5C (only 11% increase in Delta T).

So ud need at really powerful TEC to achieve something... COMPLETELY USELESS!

here a link to a TEC guide...
http://forums.extremeoverclocking.co...ad.php?t=36894

[CharmedLover84]

No you don't understand. I already have the unit, it's from an AC unit I got for my computer that didn't work so I took the freon-type unit out of it. It actually works really well with just a fan blowing the cold air from it on to a CPU heatsink, so I'm thinking it might do good elsewhere... and it does take some decent power, I think it drained my PSU of like .5Vs on the 12V readout, which is ridiculous, but I think I may try it anyway.
And the BigWaterSE ain't that bad man, it's givin' me 600-850MHz of OCing power lol

[vikeor]

i got a 1050mhz OC with my big water :]

[CharmedLover84]

I probably could too if my voltage wasn't capped :-P