Graphics & CPU differnet temps

killswitch73 · 18 Jan 2016 at 21:45

My pc is on the same watercooled loop with 2x480mm radiators with 4 pressure fans on each . with a very powerful dual DDC 3.2 EK pump .

when i game and small overclock on the 2x980ti sc (with slight overclock) i get temps of around 48c to 55c max , i can feel the hot air coming out of the side rad and fan as i have these on pull , i can feel the hot air coming out of the top too . the pump and fans are on 50% .

Now my convern is that when overclocking the cpu to say 4.3ghz and i get temps of 60c , and fans and pump on say 40% , its nothing but COLD air coming from the fans and rads , and its COLD COLD not luke warm , COLD .

why is this ?

MrMD · 18 Jan 2016 at 22:00

killswitch73 said:
My pc is on the same watercooled loop with 2x480mm radiators with 4 pressure fans on each . with a very powerful dual DDC 3.2 EK pump .

when i game and small overclock on the 2x980ti sc (with slight overclock) i get temps of around 48c to 55c max , i can feel the hot air coming out of the side rad and fan as i have these on pull , i can feel the hot air coming out of the top too . the pump and fans are on 50% .

Now my convern is that when overclocking the cpu to say 4.3ghz and i get temps of 60c , and fans and pump on say 40% , its nothing but COLD air coming from the fans and rads , and its COLD COLD not luke warm , COLD .

why is this ?

The delta between your water temp and cpu will always be larger than the delta between water temp and a GPU.GPU blocks are far more effecient at removing heat than cpu blocks ,due to having direct contact on the die and a larger surface area for heat transfer in the case of gpus.

When you talk about 60c and cold air coming out the rads,do you mean just when your benching the cpu alone? Cause if so,thats normal. cpus produce significantly less Watts than gpus.

Disco_P · 18 Jan 2016 at 22:24

What he said ^

killswitch73 · 19 Jan 2016 at 00:00

Ok thanks guys ...and I have 2 gpus to cool too so it makes sense now . .

BoydieUK · 19 Jan 2016 at 20:22

i've literally just upgraded to watercooling, so happy my temps were 94c on my msi 290x.. now i do not go above 60c think the coolers on the msi 290x are just rubbish! my cpu temp is about the same as when it was cooled my fans though...