Galaxy 9600gt heat problem

October 21, 2011 at 11:32:24
Specs: Windows 7, e2200
Hi
After cleaning video card heatsink yesterday, GPU temp increase from 53-55c idle to 57-59c idle.
This is 9600gt overclocked (745mhz GPU, 990mhz memory, 1862mhz shader, 100% fan), before cleaning i used to get 53-55c idle and 42-45c idle(rain seasons).

I used silicon based paste between GPU and heatsink, i tried different methods and only small dot give me good results(tiny dot gave me 60c idle oc). I noticed a couple of thermal pads attached on bottom of the video card heatsink, since i reinstalled the heatsink 4 or 6 times do i need to replace them? they are in good condition (they are bit dirty but still have sticky glue on them).

Today i spent most of the times running stability test using furmark, the highest temperature i saw was 92c then this evening ran another test "xtreme burning mode" and highest GPU temp i saw was 88c. All this tests i ran with video card overclocked and so far no errors.

I installed stalker shadow of chernobyl and try to run it, after few minutes of playing game start to freeze then crash to desktop with error. The next thing i did was to reset video card cloaks which is (650 GPU, 1625 shader, 900 memory, 100% fan) and ran again stalker, this time the game didn't freeze but i notice the highest temp reported by eVga precision is 80c(GPU usage was 98%) which i believe is higher.

I don't understand why a dirty video card full of dust perform good over cleaned heatsink or may be this silicon based paste is not good(the same paste used on CPU which keep it under 45c idle). I was thinking maybe metal based paste will help solve this problem.
Please i need your help to solve this problem.
As iam writing this the GPU temp is 55 with default settings.

System specs
-e2200 at 2.6ghz
-Asrock g31m-s
-(1gb x 2) ddr2 667
-Galaxy 9600gt (current default settings)

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#1
October 21, 2011 at 11:57:43
Since when did you start asking questions? You're supposed to be answering them! lol

I'm a little unclear about what you mean by "thermal pads attached on bottom of the video card heatsink". Is your card the same (or similar) to the one in the link below? Huge copper heatsink? I'm guessing it not only helps cool the GPU but some of the memory chips too?

http://www.newegg.com/Product/Produ...


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#2
October 21, 2011 at 12:34:23
Yes iam suppose to answer them but i can't find the solution for this one, my hair is starting to fall may be i should stop scratching my head.

Yes the card looks similar(it's 1gb version) but the blue plastic that cover heatsink covers the whole area(u can't see the single wire until u remove it)

The thermal pads helps to cool memory chips around GPU(i think they are 5 of them). The heatsink color looks like stock CPU cooler color(i guess it's alluminium). Only GPU touch the heatsink with thermal paste the rest use thermal pads to contact with heatsink. The color of thermal paste i removed was gray.

You know the real meaning of peace only if you have been through the war.


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#3
October 21, 2011 at 13:52:01
My guess would be that the thermal pads are no longer working. You broke the seal when you removed the housing. A little bit of dirt can make a difference. Don't pull too much hair out, you have a long life ahead of you :)

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Related Solutions

#4
October 21, 2011 at 16:01:41
The heatsinks looks like this http://www.techpowerup.com/reviews/... but replace copper with alluminium. Thermal paste i removed looks the same, can u help identify the gray thermal paste in the screenshot(is it sillicon based)?

Yes u are right adhesive thermal pads they should not be reused. Do u think i should get better thermal paste?

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#5
October 22, 2011 at 05:02:55
I have found out the stock thermal paste used by galaxy 9600gt is silver based.
Iam planning to get artic cooling mx-4, it's under 10 bucks.

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#6
October 22, 2011 at 05:15:05
mm this issue reminds me of something that happened to a friend of mine. he also had his gpu overclocked. but my guess is that the compound that was already on the gpu has stopped working due to the OC, AFAIK the OC was kept a long time, until now plus the fan was running at 100% most of the times so this could be a huge cause. the dust its actually weird but it helped keeping ur heatsink by filling the gap:P
my advice is that u dont risk the card by OCing again keep it at stock for safety,
the 9600gt is a good card at stock i keep my 9800gt at stock and its perfoming perfectly.
oh and dont worry even experts sometimes require help thats what were here for ;)

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#7
October 22, 2011 at 05:29:33
I think 80c underload is un-acceptable(default settings), i can't find a good thermal paste in the local store, all the have is cheap crap sold under 1 buck(iam really disappointed).
I will also try to look for non-conductive thermal pad(0.5mm - 1mm), i will be very lucky if i find one.

You know the real meaning of peace only if you have been through the war.


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#8
October 22, 2011 at 07:36:18
I almost never use silver-based paste. Silicon-based works just as well & it's cheaper. I don't think the paste is your problem unless you're applying it incorrectly.

Looking at the picture of the heatsink, I'm still confused. It's obvious where the GPU makes contact, but what's up with all those other protected areas? Is that plastic supposed to be peeled off? Or is it supposed to stay in place to act as a cushion or prevent shorting out? Regardless, I doubt that those areas would have much (if any) effect of the GPU temp.


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#9
October 22, 2011 at 08:38:14
The other protected area is thermal pads(12 white thermal pads). Thermal pads fill the gap between memory chips and heatsink, the gap is big that's why they don't use thermal paste.
The purpose of pads is to transfer heat produced by memory chips to heatsink, without them the video card will be unstable or die early.
I also doubt, as stated above i ran stability test with furmark for hours and i didn't get any errors, if those pads were not working correct i will have already saw some errors.

<fon


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#10
October 22, 2011 at 08:48:57
Iam positive the thermal paste is correct applied(tried different methods only small dot give lower temp readings).
I have done some readings and found out silver base paste can decrease the whole 10c if applied correct(compare to silicon based), the artic cooling mx-4 is non-conductive paste and current users reports it's doing wonders decreasing temp and manufacture clain it last for 8 long years.

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#11
October 22, 2011 at 12:47:59
well isnt there a store that sells mx-4 paste?

computers are a second home
NVIDIA GeForce
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#12
October 22, 2011 at 13:26:58
It will be a miracle to find artic cooling mx-4 here, i checked ebay but the shipping fee is insane(46 bucks include shipping, the tube cost 9 bucks).

It is time for video card manufactures to include a small tube of thermal paste and a sheet of thermal pad in their packages, i wouldn't mind paying the extra 15 bucks.

You know the real meaning of peace only if you have been through the war.


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#13
October 23, 2011 at 01:52:06
amen to that!

computers are a second home
NVIDIA GeForce
toxict51


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