480GTX Heat Load Test - Page 2 - Overclock.net

ChielScape · 09-16-07

way more. it uses around 400W of power, and can move 320W. thats 720. even if it doesnt get enough heat supplied to reach the 320, its still way over 226.
same for the 437. either that, or everything i have learned of pelts is false.

**ira-k** · 09-16-07

Quote:

Originally Posted by ChielScape

way more. it uses around 400W of power, and can move 320W. thats 720. even if it doesnt get enough heat supplied to reach the 320, its still way over 226.
same for the 437. either that, or everything i have learned of pelts is false.

Yeah you must not know anything about TEC's thats for sure...A 320W running at 12vdc is exactly 226W......The 437W running at 22vdc is what ever I listed it as....TEC undervolting charts

ChielScape · 09-16-07

what im understanding from what you're saying, is that it only moves heat, yet doesnt produce any itself. the numbers just seems so small to me.

DeltaUpsilon · 09-16-07

I wish my ambients would go DOWN like Ira's when I stress test....he must be using some kind of watercooling black magic...

When I load up small FFTs I can almost visualize those pictures of gigantic arctic sea ice breaking up due to global warming

....and I think my Quad is contributing

...Al Gore must hate me...

As far as your results, that is mighty impressive for the 480 rad and your temps are very reasonable considering the stress you're putting them through. +rep.

**ira-k** · 09-16-07

I just keep double posting..........

**ira-k** · 09-16-07

Quote:

Originally Posted by ChielScape

what im understanding from what you're saying, is that it only moves heat, yet doesnt produce any itself. the numbers just seems so small to me.

Yeah they are a heat pump...They are pulling a lot of amp's for their wattage ratings.....They are also designated at 2 different Q-Max ratings @27C and at 50@, we fall under the 27C spec's running them on comp's most of the time I would think..Anytime you see 2 designations the first is for a Q-Max of 27C the second for a Q-Max of 50C...

EDIT: Thanks...My ambients drop from the AC staying on when I load it up..The 437W is a good space heater....

ChielScape · 09-16-07

yes, but what i was trying to say, you only take those calculations in mind, and not the total output of the TEC, which is consumed energy+transported energy. and if you say 226W, that would be for just 1 of the 2, not sure which though. kinda vague.

**ira-k** · 09-16-07

Quote:

Originally Posted by ChielScape

yes, but what i was trying to say, you only take those calculations in mind, and not the total output of the TEC, which is consumed energy+transported energy. and if you say 226W, that would be for just 1 of the 2, not sure which though. kinda vague.

.

Thats probably why I hadn't thought about using the 320W to start with if its not on a die..Since its not on a die it will only be pulling heat out of the air, no good...See what happens if I pay any attention to you....

...It would be pulling a lot less then 320W not on a die.....The TEC will only pull as many amps as the vdc you give it and the heat load....There are a lot of articles on TEC's if you wan to learn about them, just do a Google you'll get a lot of hits.....

ChielScape · 09-16-07

thats why i said... put a heatsink on the cold side.

**ira-k** · 09-16-07

Quote:

Originally Posted by ChielScape

thats why i said... put a heatsink on the cold side.

Like I said educate yourself about TEC's....It would only pull heat out of the air if its not on a die..You could put a little HSF blowing on it to keep the hot side cool....It won't be pulling 320W it will be a lot less, how much I have no idea, go see if you can figure out how many watts a 320W Pelt will pull out of a room ambient of 25-26C because I'm not going to..

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480GTX Heat Load Test

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