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Lowered 4870 temps by 13C after cleaning and using Dynex TIM

post #1 of 7
Thread Starter 
I am SHOCKED!

Here's the story: I sold one of my XFX 4870 XXX and thought I'd do the buyer a favor and clean out the card (I hate sending dirty hardware).

At any rate, I took apart the factory heatsink, cleaned out the dust bunnies --which there was very little, and cleaned the fan (Man it sucks cleaning these).

I was all set to put it back together and wouldn't ya know it, I ran out of TIM. All out of AS5, Thermalright stuff, IC Diamond EVERYTHING! Since I'm sending this thing out tomorrow, I had to get it back together STAT!
All of my local computer shops were closed and the only place open is BB that actually sells TIM.
The ONLY kind they sell is this Dynex silver thermal compound. Of course I'm like great, just some cheap crap, whatever, it'll have to do.

At any rate, get home and put my 4870 back together. Fired it up and noticed it was idling @ 52C. Now for as long as I've owned this card, since Jan. '09, it has ALWAYS idled at 62C. So I'm like

Decided to put a load on it and see how it does. Fired up some BC2, with 99% GPU load, it ran @ 62C. Normally it would be hitting ~74C.
Wow! It actually keeps my GPU quiet. I am thoroughly shocked. Who'da thunk it that this Dynex mumbo jumbo can lower GPU temps that much.

Needless to say I'm very impressed, and would definitely recommend this to anyone in a pinch that has a BB close by.

Here's my load temps after:




And here's what it idles at now:

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post #2 of 7
i bought a gtx 280 used and the card would get up to 100C(yes lol) under load before i'd have to shut everything off.

took it apart, cleaned it out, and noticed that the stock thermal paste was completely baked. replaced with as5 and temps dropped by about 35C. so yeah....changing gpu thermal paste can be a pain but it's definitely worth it
post #3 of 7
Thread Starter 
Quote:
Originally Posted by naizarak View Post
i bought a gtx 280 used and the card would get up to 100C(yes lol) under load before i'd have to shut everything off.

took it apart, cleaned it out, and noticed that the stock thermal paste was completely baked. replaced with as5 and temps dropped by about 35C. so yeah....changing gpu thermal paste can be a pain but it's definitely worth it
Well the thing is, this video card, since new, idled at 62C; now it's idling at 49C. When I took it apart to clean it, there was very little dust in there, definitely not plugging up the heatsink in any way.

The factory TIM was not baked or anything like that. It still smeared pretty easily. However, I did see that the TIM that XFX used was a thicker paste. Looked a lot like AS5 quite honestly.
This Dynex stuff is kind of off white in color, and a little bit thinner.

Perhaps XFX just used too much.
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post #4 of 7
my 6970 doesn't get over 62C with my custom fan profile, and no it's not at 100%
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post #5 of 7
Thread Starter 
Quote:
Originally Posted by venom55520 View Post
my 6970 doesn't get over 62C with my custom fan profile, and no it's not at 100%
Nice. Which cooler do you have?
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post #6 of 7
I generally always change the thermal paste on any new graphics card I get. Ive noticed the thermal paste that comes stock is usually dry when I take off the heatsink.
     
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post #7 of 7
Quote:
Originally Posted by BlackOmega View Post
Nice. Which cooler do you have?
stock

i think it's attributed to my rv03, the mobo tray is flipped 90 degrees so the heat from the card naturally dissipates upwards.

plus the two giant fans bellow it and the intake fan under it help as well
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