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Is a rise in temperatures like this normal?

post #1 of 7
Thread Starter 
OK so I use a Kuhler 620 on my GPU in a SilverStone SG08 in a PULL configuration (single fan pulling air through the radiator).

I reapplied the thermal paste on it because I thought it was getting too hot...or at least abnormally so. Normal gaming after some time topped at around 75C...which for a water cooler seems high, especially since it ran MUCH cooler in my full size case.

Anyways...after reapplying I start the PC before its all assembled and the GPU is hitting a max of 54C playing Sleeping Dogs and BF3 for a bit (more than enough time for the radiator to heat up).

So 54C while the radiator is just sitting on top of the PSU before putting it all back together. I think, "Great! Looks at those low ass temps! My problem is solved!".

Wrong...or so I think. Here in lies the problem.

So I put it all back together fine, everything is working...except now I'm hitting my old temps (mid-70's) with the same games. Only thing I can think of is air flow...but my case has vented sides and there's a big open slot on the front (where the CD-ROM would go) RIGHT next to the radiator...like 1/2 inch away...plenty of air circulation in my opinion! There is about 1-1/2 inches of space (maybe more) between the radiator and the PSU.

Either way I just didn't expect my temps to jump that high! I knew there might be SOME differences...but 20C?! So is something else afoot here? Nearly a 20C jump in temps from the cooler just being in the open vs. a very open case. Also, the fan holes have been cut on top, so there is no air restriction as far as it getting out (no big grills or anything) and there is also a 120mm fan on the side sucking cool air in.

I don't know, just disappointed I guess. Sure ITX is small...but I wouldn't think there's THAT big a difference.

Oh also, ambient temps went up too...like 31C to 41C... :-\

TL:DR -
  1. GPU was hitting 75C gaming on Kuhler 620.
  2. Radiator OUTSIDE case gives my 54C temps max.
  3. Radiator INSIDE assembled case gives me the old 75C.
  4. Air flow seems more than adequate in my opinion but temps jumped over 20C!
  5. Opinions?
post #2 of 7
Maybe you're not pulling in cool air from outside the case, but warm air from your components. Try reversing the flow of the air if this was true.
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post #3 of 7
Thread Starter 
Wouldn't that just bring hot air in the case? I'll give it a shot!
post #4 of 7
I can think of a few things here!

1 - Are you using a closed loop? are a complete custom loop?
2- what size radiators do you have?
3- what kind of fan's are you using?
4- what kind of thermal paste?
post #5 of 7
Quote:
Originally Posted by AndroidVageta View Post

Wouldn't that just bring hot air in the case? I'll give it a shot!

Unlikely outside air is any hotter than the air already in your case. You should definitely be pulling air in from the outside, or at least have plenty of airflow for it not to matter much.
Quote:
Originally Posted by REPUBLICOFGAMER View Post

I can think of a few things here!

1 - Are you using a closed loop? are a complete custom loop?
2- what size radiators do you have?
3- what kind of fan's are you using?
4- what kind of thermal paste?

He said a Kuhler 620.
post #6 of 7
Thread Starter 
Quote:
Originally Posted by xNiNELiVES View Post

Maybe you're not pulling in cool air from outside the case, but warm air from your components. Try reversing the flow of the air if this was true.

(Unreal voice) HOLY SHHHIT-T-T-T!

So, I did as you suggested (as been suggested before but I never tried) and reversed the fans...wow...playing the same games as above the highest I saw the GPU get was 55C @ 950mhz. GTX 580 here folks. Those are some awesome temps.

CPU I did the same with (Corsair H70 - yes, dual closed loops in an ITX case) and temps improved there...not majorly, but well enough. Max of like 68C @ 4.5ghz 1.33v where before it would get in the mid 70's.

Either way its MUCH better all the way around.

Amazing, simply amazing!
post #7 of 7
Quote:
Originally Posted by AndroidVageta View Post

(Unreal voice) HOLY SHHHIT-T-T-T!

So, I did as you suggested (as been suggested before but I never tried) and reversed the fans...wow...playing the same games as above the highest I saw the GPU get was 55C @ 950mhz. GTX 580 here folks. Those are some awesome temps.

CPU I did the same with (Corsair H70 - yes, dual closed loops in an ITX case) and temps improved there...not majorly, but well enough. Max of like 68C @ 4.5ghz 1.33v where before it would get in the mid 70's.

Either way its MUCH better all the way around.

Amazing, simply amazing!

Your welcome, enjoy your temps!thumb.gif
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