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Can you use thermal paste instead of thermal pad (fullcover gfx)?

post #1 of 12
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Hi,

I received EK FC6970 full block that I purchased from a board member here but it appears some of the thermal pads are missing...(although the person said it was never used, I have sent a PM to him about this).

In the meanwhile, I really don't want to shell out the money for purchasing thermal pads and was wondering if it was possible to use thermal paste on the PCB chips? I know that the pads have different thicknesses but if I were to coat the PCB chips with the thermal paste in required thicknesses, will it work?
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post #2 of 12
In short, yes.
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post #3 of 12
I've seen some youtube vid, people using thermal paste on those pcb chips. I'm not sure either.
post #4 of 12
make sure you use non-conductive TIM if you plan on using TIM instead of thermal pads

AS5 for one is a big nono
post #5 of 12
It would but it depends on what kind of paste. As long as the paste is non conductive,

Stay away from Artic Silver 5.

i dont know any off the top of my head that are non conductive, but a quick google search or forum search can get you your answer.

However, i do recommend using the pad. the pad provides better heat transfer when their is a gap between the surfaces.

Paste is used only when the two items are making close direct contact, it performs inadequately when they are not making direct contact.
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post #6 of 12
Quote:
Originally Posted by Mr.Pie;13299599 
make sure you use non-conductive TIM if you plan on using TIM instead of thermal pads

AS5 for one is a big nono

This and thats not necessairly a yes.

Thermal pads are thick. And compensate for milling inaccuracies. Paste might not be enough..

You can try it paste it mount and remove... check the spread patterns. Some might not spread much at all.

I do normally pull thermal pads off of mobo and paste them (VRMs and such) to help cooling. But sometimes have to switch to a bolt through method instead of a the pin mount most use to compensate for the offset.
Edited by Neur0mancer - 4/27/11 at 7:13pm
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post #7 of 12
Made the mistake of putting paste on ram before, bricked it, but the oven fixed it. I will never use paste on anything but CPU and GPU from now on.
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post #8 of 12
Quote:
Originally Posted by nden;13299597 
I've seen some youtube vid, people using thermal paste on those pcb chips. I'm not sure either.

Not all waterblocks need pads, depends on the card & block.

If that particular block is supposed to use pads, you pretty much need to use pads or you won't get good contact. There will be like a .5mm or 1mm gap between the block & IC/component it is supposed to be contacting & a pile of paste in there just won't be as effective.
    
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post #9 of 12
again as other have said above ^

I did forget to mention about the spacing

there are specific spacings sometimes...thats why with the waterblocks they come with different sized pads
post #10 of 12
If the surface doesn't literally touch the contact point then use pads. Globbing TIM does no good.
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