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8800GTX-OC and HEAT!

post #1 of 5
Thread Starter 
Greetings!
To explain my situation I will need to post some history of my addiction. Bear with me
Previous system 2 years ago:
Windows XP-64 Pro
Asus A8N-SLI Deluxe
AMD 4400-x2 (939)
4 x 1gb of DDR 400
(2) BFG 6800s w/256mbs in SLI PCI-E
Seagate Barracuda 320 GB (ST3320620AS)
Thermaltake 750w Purepower
Thermaltake Black Armor.

System Upgrade 1 years ago:
(2) BFG 7900 GT-OC w/512mb PCI-E in SLI
(2) Seagate Barracuda 500GB Sata II (ST3500630AS) 16MB cache

New System 6 months ago:
AMD 6400-x2 Black Edition
Zalman 9700 (all copper /w heat-pipes)
Asus M2N32-SLI Deluxe Wireless Edition
2 x 2 GB of DDR2 800 (5-5-5-15)
(2) BFG 7900 GT-OC w/512mb PCI-E in SLI
(2) Seagate Barracuda 500GB Sata II (ST3500630AS) 16MB cache
Thermaltake 850w Purepower
Thermaltake Black Armor w/250mm fan on door.

Upgrade 3 Month ago:
2 x 2 GB of DDR2 800 (5-5-5-15)
BFG 8800 GTX OC 768

Upgrade 1 Month ago:
2nd BFG 8800 GTX OC 768 now in SLI

My issue is HEAT. My room is becoming a hot house! the AC is on all the time, heh. I live in Florida on the west coast, so weather wise its hot to start with.

Will changing to liquid cooling on those 8800s reduce the heat output in my room from the cards? And might as well consider the CPU to liquid cooling also

I went to Danger Den's and looked at the waterblock for the 8800 GTX. I have no issues with cost on it for my two cards. My problem is where do I go from there and how is it all connected.

My best friend who is a hard core OC highly recommended overclock.net so here I am.


Regards,

~ Kahasm~
PWNU
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CPUMotherboardGraphicsRAM
6400x2 ASUS M2N32-SLI wireless BFG 8800GTXOC 8GB DDR2 800 
Hard DriveOSMonitorPower
Seagate 500gb sataII XP-64 Pro Viewsonic 22" wide Thermaltake 850 PurePower 
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Thermaltake Black Armor 
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PWNU
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6400x2 ASUS M2N32-SLI wireless BFG 8800GTXOC 8GB DDR2 800 
Hard DriveOSMonitorPower
Seagate 500gb sataII XP-64 Pro Viewsonic 22" wide Thermaltake 850 PurePower 
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Thermaltake Black Armor 
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post #2 of 5
The cards wouldn't generate a lesser amount of heat, it just gets dissipated more quickly and more efficiently. That being said, liquid cooling those cards will reduce their overall idle & load temps essentially lowering the amount of heat dumped into the room. Basically you wouldn't be allowing the cards to get as hot as they do now. So basically, ya I think it would help.

unless of course my thought process is completely out of whack with reality (it's been known to happen) anyone care to back me up? or correct me?
New Blood
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New Blood
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post #3 of 5
Thread Starter 
So my next questions is what's the difference between using all copper or all aluminum blocks? I was under the impression copper > aluminum ? or is this different when using liquid?

And how many pumps and or radiators? Two 8800 GTX OCs at the minimum; if possible will anything else need to be aquired if I added the amd6400 into the loop?
PWNU
(13 items)
 
  
CPUMotherboardGraphicsRAM
6400x2 ASUS M2N32-SLI wireless BFG 8800GTXOC 8GB DDR2 800 
Hard DriveOSMonitorPower
Seagate 500gb sataII XP-64 Pro Viewsonic 22" wide Thermaltake 850 PurePower 
Case
Thermaltake Black Armor 
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PWNU
(13 items)
 
  
CPUMotherboardGraphicsRAM
6400x2 ASUS M2N32-SLI wireless BFG 8800GTXOC 8GB DDR2 800 
Hard DriveOSMonitorPower
Seagate 500gb sataII XP-64 Pro Viewsonic 22" wide Thermaltake 850 PurePower 
Case
Thermaltake Black Armor 
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post #4 of 5
Copper has a higher thermal conductivity of 400 W/mk compared to 237 W/mK for Aluminum. Copper is however much more expensive than aluminum. Most quality blocks use copper. Never mix the 2 in a loop or you get whats called galvanized corrosion. Bad ju-ju. So make sure the block and radiator internals are made of the same materials.

For 2 OC'd GTX's I would suggest full EK blocks or Swiftech MCW60-R with the MC8800 cooling kit
a thermochill radiator 120.3, and
a laing D5 vario pump.

If you were to include the cpu.....AND overclock it, I would suggest a larger rad. Hardware labs GT Extreme 480. For the cpu block, the D-tek fuzion is very popular due to it's superior performance.

One place people around here like to shop, or at least use as an example is Petra's tech shop
http://www.petrastechshop.com/watercooling.html
If you poke around there you'll find all the hardware suggestions.
New Blood
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New Blood
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post #5 of 5
All well and good, yes it will keep your pc cooler.

As for outputting less wattage through heat, I'm not so sure.
I believe it goes something like this:

Heat output is a function of resistance, while,
Resistance is a function of temperature.

So what I'm trying to say is that by reducing the temperature of your system, you should end up with reduced resistance which in turn causes the system to output less heat.

It will be quite negligable mind you.
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OMNOMNOMNOM
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