A few watercooling questions.

TheCenturion · 29 Oct 2010 at 19:47

Yes, I should know the answer to the question as I'm doing physics

At the moment, my i7 930 has reached a max of 53'c under load at stock clocks. My gtx 480 has reached about 48'c max at stock clocks. Both are underwater. Room temp is pretty cool, it's the coldest rooom in the house, I think it must be about 20'c.

This is weird as not only is the cpu before the gpu in the loop, but the gpu surely produces more heat?

I'm planning to overclock to at least 4ghz. I imagine that this will mean that my temps could go to 60+

I'm also considering some Mayhems Dye for my system. However, it says that the system has to be between 50'c and -8'c. If both my cpu and gpu are going to be in the mid/high fifties of temp under load, then what is the maximum temperature that the coolant will reach? From what I think I know about physics, I can't imagine that the water will reach anywhere near 50'c? But I'm just making sure.

Thanks

OLDPHART · 29 Oct 2010 at 21:03

For some reason the GPU benefits more than the CPU when water cooling nothing to worry about, perhaps one of the more knowledgable guys knows why.

My CPU[4.2>hotest core 68'c] > to > GPU[470:800/1600/1800] peaks at 49'c at a room temp of 23.5'c.

MikeTimbers · 30 Oct 2010 at 23:25

The heat of the coolee will depend on the efficiency of the cooler. You might be surprised to find that the block on your graphics card may be doing a better job of removing the heat than the block on your cpu.

reiyushin · 31 Oct 2010 at 00:56

What'd you test the temps under? Prime for one and Furmark for the other or?

TheCenturion · 31 Oct 2010 at 01:55

GTA IV

CPU block is EK supreme full hf

reiyushin · 31 Oct 2010 at 01:13

Ah ok, I'm not sure how harsh it is on either the CPU or GPU.

I think the lower temps on the GPU is because the core itself (where the readings are taken from) generates less heat than the i7 core, however the total output for the card would exceed the i7s total output. Then there's heat dissipation areas etc to think about.

Although an i7 @ 4.0Ghz gives out something ~250w of heat and so could match up to a stock 480 heatwise.

As for the temp of the water, you're right in saying it won't reach anywhere near 50 and the dye should be fine