anyone lend a hand with some temps..

kindai

kindai

kindai

Sgarrista
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Does anyone have an accurate water temp after passing through 1,2, or 3 280x or 290x cards using EK waterblocks?

Cheers
 
you do know thats completely dependant of amount of rad space and the water temp across a whole system only varies a degree or 2?
 
No, not looking for that, just looking for someone who has it already directly after the GPU that can take a reading and give me a temp.

Ideally after a second and a 3rd block also. Just interested in the heat in the water directly after being exposed to a hard working GPU.
 
Can't give an accurate temp due to what above guy said also taking into account ambient temps.

Working on the tdp of the cards, the amount of energy needed to heat water by 1 degree(4184w increase 1 litre water by 1 degree a second)and a average ambient of 26. Obviously this assumes 100% transfere (which isn't possible) but you get a slightly more accurate idea;

Ok 280x 250w using 256 watts per card into water;
1-increase by 1degree per 18seconds.
2-increase by 1degree per 8.5seconds.
3-increase by 1degree per 6seconds

Why do you need to work at this level?

Does this help at all? Sorry kinda doing maths in my head at the moment but it should be close.
 
kindai said:
No, not looking for that, just looking for someone who has it already directly after the GPU that can take a reading and give me a temp.

Ideally after a second and a 3rd block also. Just interested in the heat in the water directly after being exposed to a hard working GPU.
Click to expand...

??

The bloke you disregarded kinda answered it...

Finners said:
you do know thats completely dependant of amount of rad space and the water temp across a whole system only varies a degree or 2?
Click to expand...

Taking the temps directly after a bank of GPUs will only probably be 1-2c hotter than the coldest part of the loop, and the loop temps depend on amount of rad space, ambient temps, fan speeds etc etc.
 
Tonester0011 said:
??

The bloke you disregarded kinda answered it...



Taking the temps directly after a bank of GPUs will only probably be 1-2c hotter than the coldest part of the loop, and the loop temps depend on amount of rad space, ambient temps, fan speeds etc etc.
Click to expand...

I don't get whats hard to understand.

I'm simply asking for a figure.

35 degrees
99 degrees
-58 degrees


Im simply asking, at the hottest point, eg when the water comes out the waterblock(s) how hot is the water. (ambients not regarded as most households will be within a few degrees of each other).
 
You got yourself the real answer, then you disregarded it.

You do know you cant just add up temperatures to find out what temps will be after you expand your loop...
 
Last edited:
Can't believe I overlooked that entire paragraph in the OP where you gave a detailed description of your non-standard loop










Oh wait.....
 
For ANY loop whether it is sub ambient or not, you cant add up temperatures like that if that is why you want to know. If that isnt the reason, then what is?

I think everyone in this thread is rocking a non standard loop, this is the custom cooling sub forum after all :D
 
The problem you have OP is that your assuming the water will go in the GPU blocks and come out hotter, which is correct however not as simple as it sounds. The slower the water is flowing the more heat each molecule will absorb on it's journey through the block and so the hotter it will be coming out, however if it is moving faster then the molecules will absorb less heat and not be as hot when they come out (this doesn't affect performance as due to the higher speed more molecules are passing through the block taking the heat away faster).

The end result is, that as long as the loop is working properly then like people have said the warmest part will only be 1-2 degrees hotter than the coldest part, the actual temperature of the water depends on your ambient (room) temperature and how effective your radiators/fans are at venting the heat.
 
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