FallingUp

Hey everyone. I'm brand new to the forum but have been doing overclocking and water cooling research for a week or two, so hopefully I know enough to have a halfway intelligent conversation, heh.

Here's my plan : I'm interested in installing a water cooling system in order to overclock my Q6600 as high as possible (goal of 4 GHz). I'd also like to cool my 8800 GTS, as it is overclocked and runs very hot, and possibly the north bridge, as I've heard it gets hot when overclocking so high.

I'm more interested in active cooling and sub-ambient temperatures for the CPU, so I thought I'd add in a 437W Peltier as part of an Arctic Web or with a Stinger V8P block. My main question is this: will the 437W be enough to cool the processor to sub-ambient temperatures?

Secondly, will a heater core style radiator such as the PrimoChill HE-Core be able to dissipate the heat from an overclocked processor, gpu, and north bridge? Or will I need two loops and two radiators, possibly one for the CPU and one for the GPU / north bridge?

Also, does anyone have a price for the Stinger V8P? The arctic web is looking pricey and out of stock everywhere I've looked. Thanks a lot guys!!

Rick Arter

Not sure on the price of the stinger v-8, but with the 437W pelt and a 360 or bigger radiator should be no problem. Not sure on how below ambient you will get but for a Q6600 at 4.0 GHz I do not see an issue. For max results I would get at least a 360 rad from Swiftech and strap 6 Silverstone fans or similar in push/pull orientation.

Welcome to OCN.

__________________

xviosx

welcome to OCN, it should work well, but when adding pelts, make sure your water loop can dissapate the heat of those too

I second Rick Arter's post

H3||scr3am

V8P is surely the way to go!
about 300 dollars i beleive...
the 437Watt pelt will be sufficient to cool the Quad.
Don't add the north Bridge into the loop, just put after market aircooling onto it. this will decrease the temps of the loop, keep the NB fine, and allow for a poteintially higher OC on the CPU/GPU. Yous hould use a single loop, easier to maintain, and setup, less hassle, less money, and less parts. You'll need to use a large radiator, the one Stinger supplies is of fine construction and will suit your needs, others to look at would be rougly 3x120mm or higher... the ammount of heat dumped into the loop from the pelt and GPU is astronomical... 437W (at full) + GPU... so u'll need to dissipate that quickly and efficiently, you'll need to look for some good fans, 90CFM or higher most likely... and I also suggest u ask ira-K about this seeing as he already has one setup!

heres my Quote from freddy!
"the V8p with integrated Coldplate and mounting hardware for $190 + shipping, the block is 3.250 X 2.400, big enough for the 437, the TEC mounts independently of the motherboard, mounting to the base of the block. I no longer do all copper blocks, the top will be brass.
About 1 to 2 weeks lead time. I accept Pay Pal, money orders or checks. "
so its around 200+ shipping... but there are alot of deals going around @ christmas on shipping...

I suggest the 480GTX for a Radiator... with a good fan setup..

__________________

I am 91% addicted to Counterstrike. What about you?
OCN CS:S GG: overclock.nuclearfallout.net:27015
OCN TF2: 8.9.16.94:27015 (temporary)
[CSS GUN GAME ADMIN] Ban Hamma of Pwnage +5 skillz
[TF2 ADMIN] Ban Hammer of scouting + 20 scout powaz

FallingUp

Thanks a lot for your quick responses, they were really helpful! I thought of a few more questions though. Are there quantifiable ways to compare radiators, such as watts of heat dissipated?? I'm sure this depends on the fan setup also, but I'm trying to compare radiators and I'm not coming up with many concrete comparisons. Also, what are the differences between normal computer radiators and heater cores? I've heard the term "heater core" thrown around quite a bit as referring to a great radiator. Is there a reason they're significantly cheaper ($80, here) than say, a Black Ice GTX 480 ($150)?

Also, I've heard a lot about undervolting TECs / peltiers. From what I've read, they are more efficient when undervolted, but don't they also move less heat? So, if I'm looking to move the most heat, I'd want to run the max voltage, but the peltier will be relatively inefficient (create a lot more of its own heat)? I'm not sure if this is correct, that's just my guess.

Thanks again for the clarification!

Ultrasonic2 (muffy)

You pretty much NEVER want to run a TEC at max voltage because you end up with a situation like below because of hot side C/W's

Attached Thumbnails

 

xviosx

yep a TEC at 1/2 volts = much better

Ultrasonic2 (muffy)

i would like to also point out a 437watt TEC running at max Volts cooling a 200watt load would conssume about 815 watts of electricity.

You originally said you want ed to cool your CPU to about ambient you do realise that the unloaded CPU will be will into the negatives so you have to ether insulate everything sue to condensation OR come up with a way to control the voltage going to the TEC based on temp

FallingUp

Yeah, I had planned on insulating against condensation. I know that quad cores produce a ton of heat, so I didn't know if I would be getting down to those temperatures or not. But it seems it will get that cold, so I'll definitely take the necessary precautions.

You say that it will be consuming 815 watts at max voltage... won't I be running a lower voltage? It looks like 50%-70% would give the best temperatures on the graph you posted. I figured I would get a dedicated power source, maybe a 600 or 700 watt, and mod it to get the necessary current. Anyways, I'm still sort of guessing about this stuff, so I'm not totally sure. Thanks a lot for your help!

Ultrasonic2 (muffy)

The pic i posted wasn't actually related to you situation .. it was to give you an idea of what happens. So dont read into it to much

69 % would be about 370 watts @ 19 ish volts
48 % would be about 188 watts @ 13.46 ish volts

your obviously going to have trouble finding a 12volt + PSU

Weather or not you'll get sub ambient load temps will depend on your laod wattage and your hotside C/W