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Why you should change your GPU's thermal paste! - Page 2

post #11 of 25
Thread Starter 
Yeah. you can see all the lines and that. They'll make air bubbles. Look up "How thermal paste spreads" on youtube if you haven't seen it already.
post #12 of 25
Quote:
Originally Posted by linkin93;14364806 
Yeah. you can see all the lines and that. They'll make air bubbles. Look up "How thermal paste spreads" on youtube if you haven't seen it already.

Yeah, I've seen it. That's actually first and last time I ever use bag method.. mad.gif
post #13 of 25
So if we want to change our TIM after this post on a EVGA card, what would be the paste to use?

And any tutorial on how to do it would be great too.
Edited by SI51 - 7/27/11 at 8:54am
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post #14 of 25
Thread Starter 
I just use AS5 on everything really.

Here are the steps that I use:

1) Use Arcticlean 1&2 on both surfaces (works better than isoprop for thick pastes) wiping with tissues or lint free cloth.
2) Apply x amount of paste in the centre as a dot (this is where I experiment by mounting it, then taking it apart to check the spread, seeing if I need more or less paste)
3) Clean surfaces again, apply optimal amount of paste as centre dot.

Golden Rule 1: Don't spread the paste. The cooling block will do that.
Golden Rule 2: Use the single line method for oblong-shaped IHS's (eg GTX 460). The line goes with the longer edge, still as close to the centre as possible.

Hope that helps smile.gif
Edited by linkin93 - 7/27/11 at 9:31am
post #15 of 25
The amd 6900 series cards came with very good quality phase change paste. You want to research before changing the paste.

The older cards did benefit from better paste, but it was usually only ~3C. Dropping 10-15C is almost unheard of unless the older paste was drying out and/or the act of removing the heatsink dislodged more dust from the sink.

Also, some manufacturers have hidden seals on the heatsink that break once you remove the heatsink. Palit? It is one of the nvidia manufacturers.
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post #16 of 25
Thread Starter 
Quote:
Originally Posted by homestyle;14369022 
The amd 6900 series cards came with very good quality phase change paste. You want to research before changing the paste.

The older cards did benefit from better paste, but it was usually only ~3C. Dropping 10-15C is almost unheard of unless the older paste was drying out and/or the act of removing the heatsink dislodged more dust from the sink.

Also, some manufacturers have hidden seals on the heatsink that break once you remove the heatsink. Palit? It is one of the nvidia manufacturers.

Which is why I will never ever buy anything Palit or Gainward ever again. I had a faulty card and they downright refused to accept an RMA. The card was used, had no invoice, and was faulty. SoL. They didn't even try to help me. Ended up being my test card for afermarket coolers, lapping, mods etc. then sold it on the cheap, as-is. Never again.

All recent XFX cards (well at least the XFX GTX 460 (Yes, It's a real card, ask for pics and you shall receive) have the seals over the heatsink bracket screw holes on the rear of the card.

I sent them an email and they said I could change the paste without voiding warranty, so long as I told them and didn't break the card, then they did the usual of offering to do it for you, for a price. But yeah warranty was intact for my XFX card. Sold it to a guy on aussie forum who is now folding 24/7 on it, according to him it gets about 11k ppd on it (with an 800/1600/2000 overclock - what my palit 460 ran it)
post #17 of 25
Quote:
Originally Posted by linkin93;14364404 
So I received my GTS 450 in the mail a few days ago. Temperature wise it was idling in the 40's and getting into the 80's under load, with a 15c ambient. Quite hot for such a low ambient. Like with any other GPU I've ever owned, changing the thermal paste yielded better results. Here's why...


First thing. The amount of paste is so excessive it's not funny. Second thing, the paste, like all other stock paste, regardless of hardware type, is dimpled. wth.gif

Surely manufacturers know that perfectly flat paste would be better for temperatures and therefore longevity? Wouldn't it stop cards dying of heat related causes? Wouldn't that mean less faulty or dead cards, meaning less cards are returned? Wouldn't that mean companies wouldn't have to spend so much on replacing faulty cards?

After a replacing the thermal paste with a booger-sized amount of paste (less than a BB size), the card is now idling around 25c, and loads at about 65-70c depending on the game. That's much better, isn't it?

Moral of the story: Change your GPU thermal paste and get better temps! /captain obvious.

Not so obvious at first thought is that less heat rising from your GPU = less heat rising into your great dirty big air coolers that we love so much. Not really an issue on water or anything else though. But with air, it will help overall temps, even if only by a small bit.

Note on warranty: Many manufacturers state that changing the paste will void your warranty. I saw screw em, change the paste, and if you ever need an RMA, try anyway and don't mention it. See if they notice, or even care. Through all of my RMA's with XFX, Sapphire, Asus, HIS and other companies, they have never cared. What they don't know won't hurt them. (Note, not all the cards were mine, but many were from friends of mine who bought them through me, or they gave me the money to order it for them. I also changed the paste on all of the cards. Not thermal pads however)

You should have no excuse for leaving the stock paste on now, even with the stock cooler smile.gif
Very good advise, and worth every bit of the effort.thumb.gif
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post #18 of 25
Thread Starter 
Ta smile.gif

My PSU fan won't stop clicking, I have started RMA process from the place I bought it from frown.gif Faster than sending it to Silverstone in the states and back... A few hunred k's interstate is a much shorter travel.
post #19 of 25
i have one for AMD RADEON XFX HD6750 Thermal Paste Stock Temp: 34C Idle 65C Load

But How Should Been Apply New Thermal Paste Arctic Silver 5?

http://ecx.images-amazon.com/images/I/31BAIhWVIWL._SL500_AA300_.jpg
post #20 of 25
I regret for changing the paste on my H70. The stock paste was Shi Etsu. It was really a high quality paste CORSAIR added in. I changed to MX-4 and I see 1-2'c higher... even I retry applying it many time.

I have no plan to get Shi Etsu paste yet.

I fear this would be the same situation for both of my HD6970. So I'll leave them alone for now.
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