corsair h80i blowing cold on intel cpu

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otto21

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Dec 28, 2014
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Before anyone says my pump is broken it is not I have tested it out back on my AMD rig and it was blowing hot air.

I am sure the cooler is touching the cpu as i have tightened the screws realy hard and made sure the cooler was flat onto the cpu.

might there be somthing wrong with my intel mounting brackets? I have heard rumors about the h series not working on intel can anyone help.

My cpu is at 40 degrees idle on a i7 4790k artic thermal paste on the other hand my amd 8350fx with out thermal paste runs at 30 degrees and it blows hot air.

EDIT: run prime for about 2 minutes shot to 60 degrees and water cooler still blowing cold air
 
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There's nothing wrong. Everything is working correctly.

You can't compare temp readings between these 2 platforms, they aren't on the same scale, they aren't even really using the same units of measure.

Haswell compute efficiency is about double that of PileDriver, the power dissipation of Haswell is about half that of PileDriver, among other factors.

Doesn't surprise me at all to hear that the air blowing from the heatsink of a haswell chip is subjectively cooler than the air blowing from the heatsink of a PileDriver chip. It doesn't even surprise me that it doesn't "seem" to be elevated over room temp much if at all.
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mdocod

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There's nothing wrong. Everything is working correctly.

You can't compare temp readings between these 2 platforms, they aren't on the same scale, they aren't even really using the same units of measure.

Haswell compute efficiency is about double that of PileDriver, the power dissipation of Haswell is about half that of PileDriver, among other factors.

Doesn't surprise me at all to hear that the air blowing from the heatsink of a haswell chip is subjectively cooler than the air blowing from the heatsink of a PileDriver chip. It doesn't even surprise me that it doesn't "seem" to be elevated over room temp much if at all.
 
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Karsten75

Karsten75

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While the architectures are different, you still have to factor in the fact that heat is heat. My Intel CPU runs at 32C with liquid cooling in 25-26 ambient. So yes, 40C means that there is heat there that's not being moved. The rapid increase in heat when running a CPU test also indicates that the cooling isn't effective.

 
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mdocod

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60 degree temp reading on a quad core hyperthreaded haswell at 4ghz running P95 torture sounds pretty normal to me for aftermarket cooling (either pumped liquid systems or heatpipe systems). That's probably not even enough of a rise to trigger much of an increase in CPU fan speed (depending on settings).


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Edit in:

I've noticed the exact same effect when running low dissipation CPU configurations on AIOCLCs. The subjective "air temp" of the air blowing out of the cooler doesn't really feel elevated much if at all when dissipating ~80W or less.

Go setup a test rig with a 75W light bulb and a 120mm computer fan. Results will "feel" similar (unless a poorly designed test rig allows the effect of radiant heat to obscure the result).
 
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melonhead

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40 degrees idle is not uncommon. i have the H105, at idle, mine is 35ish. unless you are comparing similar processors, i wouldnt use the differences in temps to judge anything, especially when the chips are different manufacturers and architechtures.

the temps, whether load, or idle, are average temperatures. they do not seem to be any higher than mine are with the same chip under load/idle
 
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otto21

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Okay after fully inspecting the cooler I noticed one of the two radiator fans where replace the wrong way around! silly me! my temps now reading 35 instead of 40.

Thank you for you help guys
 
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