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what is the best way to cool off the hot side of the peltier?

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cam fortner

New Member
Joined
Jun 1, 2001
Location
Downey, California
What would be better.... air cooled with monstrous fans all over the place, or water cooled totally?

i'm going to over clock a 1.3ghz athlon, and try to take it to around 1.6-1.7 and i think a peltier/fan or peltier/water combo would be best
 

Badger

Member
Joined
Mar 11, 2001
CrystalMethod (Jun 14, 2001 11:25 p.m.):
Yep, water cooling is pretty much the best choice. Comming to think of it...I don't even think I'd attempt a non water cooled pelt.

Air cooled pelts work fine as long as the heat output of the chip and the rating of the pelt are not too high.
PIII systems can be made to work real well with air cooling, but I agree with Colin and all that a fast Tbird plus the required high rated pelt absolutely need water cooling
 
W

William

Guest
Badger (Jun 15, 2001 04:04 p.m.):
CrystalMethod (Jun 14, 2001 11:25 p.m.):
Yep, water cooling is pretty much the best choice. Comming to think of it...I don't even think I'd attempt a non water cooled pelt.

Air cooled pelts work fine as long as the heat output of the chip and the rating of the pelt are not too high.
PIII systems can be made to work real well with air cooling, but I agree with Colin and all that a fast Tbird plus the required high rated pelt absolutely need water cooling

Yep, thats right. For an amd rig, don't even bother with an air cooled pelt. On a P/// you can get away with it, but i would just go water anyways.
 

Taylor

Member
Joined
Feb 22, 2001
Location
San Diego
how about with another pelt?

(just kidding)

So do I have this straight? that cold side only stays cold as long as the heat comes off the hot side at least as fast as it leaves the cold side?

This makes me wonder why to use a pelt, if I have it right. You need to remove the same amount of heat, why bother putting it through a peltier before removing it?

So where am I wrong here? I know I must be because you guys wouldn't be wasting your time if this were the case.
 

Badger

Member
Joined
Mar 11, 2001
Taylor (Jun 16, 2001 01:28 a.m.):
how about with another pelt?

(just kidding)

So do I have this straight? that cold side only stays cold as long as the heat comes off the hot side at least as fast as it leaves the cold side?

This makes me wonder why to use a pelt, if I have it right. You need to remove the same amount of heat, why bother putting it through a peltier before removing it?

So where am I wrong here? I know I must be because you guys wouldn't be wasting your time if this were the case.

With a pelt you actually need to remove more heat, MUCH MORE !.
For a cpu giving off 80W of heat the total heat load with a suitably rated pelt would be over 300W, so you need a really good cooling system to cool a pelt.
The advantage is the pelt generates a Delta T, that is the cold side is up to 70C cooler than the hot side, so providing the hot side is cooled you can chill your cpu to below ambient or even below freezing temps.
Straight air or water coolers no matter how efficient can never cool below ambient.
 
W

William

Guest
Badger, a water cooling system can cool below ambient. Granted, that will have to be some cold water, but it is certainly possible.
 

Badger

Member
Joined
Mar 11, 2001
William (Jun 16, 2001 01:44 a.m.):
Badger, a water cooling system can cool below ambient. Granted, that will have to be some cold water, but it is certainly possible.

No straight water cooling system can cool below ambient.
Unless of course your using chilled water and that would need a chiller of some sort so would not be a "straight water cooling system".
 
K

Kryten

Guest
A garden hose would be one of the most efficent methods but I dont think your motherboard would like it to much, so as a second choice run the water inside a water block with the pelt. :)
 

JaY_III

Senior of BX
Joined
Dec 17, 2000
Badger (Jun 16, 2001 02:55 a.m.):
William (Jun 16, 2001 01:44 a.m.):
Badger, a water cooling system can cool below ambient. Granted, that will have to be some cold water, but it is certainly possible.

No straight water cooling system can cool below ambient.
Unless of course your using chilled water and that would need a chiller of some sort so would not be a "straight water cooling system".

No that is not true...
using a water tower you can get the water to temps that are below ambiat by a few degrees...
So it can be done
 

Badger

Member
Joined
Mar 11, 2001
jay (Jun 16, 2001 06:51 a.m.):
Badger (Jun 16, 2001 02:55 a.m.):
William (Jun 16, 2001 01:44 a.m.):
Badger, a water cooling system can cool below ambient. Granted, that will have to be some cold water, but it is certainly possible.

No straight water cooling system can cool below ambient.
Unless of course your using chilled water and that would need a chiller of some sort so would not be a "straight water cooling system".

No that is not true...
using a water tower you can get the water to temps that are below ambiat by a few degrees...
So it can be done

Maybe theoretically a bong will get the water slightly below ambient, but the cpu temp would in practice still be above. I'd put cash down to say there is no closed loop watercooling system without active cooling that will maintain a below ambient temperature on any modern cpu under load.
 

Taylor

Member
Joined
Feb 22, 2001
Location
San Diego
ackk! I know I can modify this post but how do I remove this extra one altogether? The cancel button doesn't seem to do it!
 

Taylor

Member
Joined
Feb 22, 2001
Location
San Diego
Badger (Jun 16, 2001 01:40 a.m.):
Taylor (Jun 16, 2001 01:28 a.m.):
how about with another pelt?

(just kidding)

So do I have this straight? that cold side only stays cold as long as the heat comes off the hot side at least as fast as it leaves the cold side?

This makes me wonder why to use a pelt, if I have it right. You need to remove the same amount of heat, why bother putting it through a peltier before removing it?

So where am I wrong here? I know I must be because you guys wouldn't be wasting your time if this were the case.

With a pelt you actually need to remove more heat, MUCH MORE !.
For a cpu giving off 80W of heat the total heat load with a suitably rated pelt would be over 300W, so you need a really good cooling system to cool a pelt.
The advantage is the pelt generates a Delta T, that is the cold side is up to 70C cooler than the hot side, so providing the hot side is cooled you can chill your cpu to below ambient or even below freezing temps.
Straight air or water coolers no matter how efficient can never cool below ambient.

So unlike with an aircooling system, which simply removes excess heat, a pelt actually refridgerates the cpu. Aha!
Thanks for setting me straight, and I apologize to Cam Fortner for horning in on your thread!

-Taylor
 

johnnyw

Member
Joined
May 26, 2002
Location
Buenos Aires , Argentina
So considering I have a Celeron 600 mhz on a QDI advanced 9 and the only thing I was able to see was that there were jumpers to change the fsb (currently on 66 but can take it to 133), I should add a pelt , cool it down with a nice HS , change the fsb and nothing else?
havent seen anything about the core voltage on the mbo itslef, can this be possible?