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Should i change the TIM ? - Page 3

post #21 of 49
I think some of the people here never replaced the TIM on the 465/470/480 cards.

Some points:

1. The TIM which comes with the cards is pretty good.
It comes with Shin-Tsu. Meaning that replacing the TIM will give you max 2c difference if you really do it right. Else you will not get any difference or even make it worse.

2. You can not use dot method or small amount of TIM on these cards.
They have heat-pipe direct connect type of block.
Meaning that there are cracks between the pipes, so a dot method or too little TIM will just be stuck to one section, and your card will over heat.

3. The blocks don't make enough pressure.
One of the issues with these cards, is that the blocks are designed bad, and the heat-sinks on them aren't connected with enough pressure, so you actually need to put quite a lot of TIM there, and make sure you put it right, else you will get bad results.

4. Its very tricky to take off and back on the blocks.
The screws holding the blocks are screwed to aluminum holders.
Meaning its super easy to grind the screw holes. One mistake and you are, screwed.


Just something to think about.
(Also this is one of the main reasons why the 5xx series come out and the cards were much cooler. Because of the much better heat design which lacked so much in the 4xx series).
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post #22 of 49
Quote:
Originally Posted by madalin View Post
@nagle : Have you seen evga's way for instance of putting tim on the 480 ? it looks like monkeys did it .. lol
No I havent but I have seen my Sapphire 5850s and my XFX 6870s both were perfectly applied. Since then I havent bothered to touch thermal past on any newer cards.

Also if you really wanna go through with it I would get some Shin Etsu.
 
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post #23 of 49
If the factory TIM application is as bad as it was on my Asus ENGTX470, you could see a big improvement.


Cleaning up that mess and putting some AS5 on the GPU dropped the loaded temps by around 13ºC on my card. As shipped it was hitting 93ºC at stock clocks/volts in FurMark at 100% fan speed.

Since the cooler uses direct contact heat pipes, you need to spread a layer of TIM out evenly on the GPU. I don't think putting a blob in the middle would work out very well.
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post #24 of 49
is it possible to increase pressure to increase contact on a GPU?
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post #25 of 49
Quote:
Originally Posted by BradleyW View Post
is it possible to increase pressure to increase contact on a GPU?
Not without custom block.
The screw holes aren't deep enough to add more pressure.
If you try, you will grind the hole and lose the contact at all.
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post #26 of 49
Quote:
Originally Posted by BKsMassive View Post
yeah i have one

can you help me integrate the line SQRT((0.9^X)+(COS(X)/X))
between the X values of 1 and 2.

i need to do it for homework
If it's an arc length formula, see here.
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post #27 of 49
Quote:
Originally Posted by BradleyW View Post
is it possible to increase pressure to increase contact on a GPU?
Maybe if he used plastic washers on the back of the gpu.
 
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post #28 of 49
Quote:
Originally Posted by madalin View Post
And what are pads ?
OMG!!!

Quote:
Originally Posted by BKsMassive View Post
yeah i have one

can you help me integrate the line SQRT((0.9^X)+(COS(X)/X))
between the X values of 1 and 2.

i need to do it for homework
LOL 1+ REP for that one, it made my day, "almost".
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post #29 of 49
Quote:
Originally Posted by nagle3092 View Post
Maybe if he used plastic washers on the back of the gpu.
If anything i would imagine this causing less contact but i really don't know.
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post #30 of 49
Quote:
Originally Posted by BradleyW View Post
If anything i would imagin this causing less contact but i really don't know.
He was either laughing or trolling.
But either way
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