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Tips for thermal paste application

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July 6, 2014 5:28:46 PM

Just as the title says, AS5 recommends that you have your thermal paste in a line according to the die but that leaves a lot of the integrated head spreader empty allowing heat to build up on there (I am talking about Haswell by the way), should I just apply thermal paste in a cross pattern to make sure I get thermal paste all over the IHS and gather heat more or just listen to AS5s recommendations?
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July 6, 2014 5:43:55 PM

this is the best video i found when i was looking myself on how to apply thermal paste :
https://www.youtube.com/watch?v=-hNgFNH7zhQ

the simplest way is still to apply a pea like spot of thermal paste since the cores are in centre of the CPU
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July 6, 2014 5:49:01 PM

pierrerock said:
this is the best video i found when i was looking myself on how to apply thermal paste :
https://www.youtube.com/watch?v=-hNgFNH7zhQ

the simplest way is still to apply a pea like spot of thermal paste since the cores are in centre of the CPU


not on Haswell, they run vertically
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July 6, 2014 5:55:53 PM

ScribbleMike said:
pierrerock said:
this is the best video i found when i was looking myself on how to apply thermal paste :
https://www.youtube.com/watch?v=-hNgFNH7zhQ

the simplest way is still to apply a pea like spot of thermal paste since the cores are in centre of the CPU


not on Haswell, they run vertically


same rule apply but just look at your cooler heat pipe orientation to be sure they are not in the same direction are your cores orientation.

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July 6, 2014 7:16:27 PM

So the two cores are vertical to each other, so it is best to put the AS5 on vertically, but if your heatpipes are in the vertical direction, do a dot in the middle or something?
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July 6, 2014 7:27:44 PM

if your pea is big enough, i won't matter what direction the cores are. But heat pipe must be perpendicular (preferably) in order to be performing correctly. I am using Artic Silver 5 myself and i just make some peas since this is the safest way to apply thermal paste.

PS: when we say a pea, we literally mean a pea-like size. So open your freezer open-up that pea-bag and gauge your size with it ! You can do a little bigger but it must not leak from your CPU since this paste is made of silver and silver conduct electricity. Handle with care.
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July 6, 2014 10:42:49 PM

I recommend the dot method, as it covers all of the cores without having to worry about using too much. Remember, a pea sized drop is sufficient. Check out razethew0rld's video on thermal paste application. (Not the Kentucky one :p , that's for laughs).
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July 7, 2014 8:49:58 AM

So is it better to have the thermal paste to cover as much of the IHS as possible? I hear everyone saying "Less is more" but if that's the case let me put an atom sized drop on. Covering most of the IHS making sure less air gets into there seems like a better idea
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July 7, 2014 8:58:41 AM

ScribbleMike said:
So is it better to have the thermal paste to cover as much of the IHS as possible? I hear everyone saying "Less is more" but if that's the case let me put an atom sized drop on. Covering most of the IHS making sure less air gets into there seems like a better idea


well It depend of many things. if your thermal paste is very thick and your fan isn't installed tightly, then yes the less you apply the better it is.

On the other hand, if you have a strong mounting which is very tight and your thermal paste is normal thickness, then paste will spread more and there will be a very thin amount of paste on your CPU anyway.

I am using a Corsair H100i which has a very strong mounting so i have no problem to spread a pea-size of thermal paste. try applying less if you are on stock fan.
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July 7, 2014 9:19:35 AM

pierrerock said:
ScribbleMike said:
So is it better to have the thermal paste to cover as much of the IHS as possible? I hear everyone saying "Less is more" but if that's the case let me put an atom sized drop on. Covering most of the IHS making sure less air gets into there seems like a better idea


well It depend of many things. if your thermal paste is very thick and your fan isn't installed tightly, then yes the less you apply the better it is.

On the other hand, if you have a strong mounting which is very tight and your thermal paste is normal thickness, then paste will spread more and there will be a very thin amount of paste on your CPU anyway.

I am using a Corsair H100i which has a very strong mounting so i have no problem to spread a pea-size of thermal paste. try applying less if you are on stock fan.


I'm on H100i too but it may just be because I have a bad cpu
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