Question Silicon grease on CPU

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mitch074

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Mar 17, 2006
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Toothpaste (the low-cost, pure white version) has been tested by others as good in a pinch for a limited time. Anything else that is water based or oil based should be avoided at all cost (water corrodes and evaporates, oil can attack some alloys and compounds). Or just be patient.
You could also see if there's a computer store near your place and get your fix right away.
 
Toothpaste (the low-cost, pure white version) has been tested by others as good in a pinch for a limited time. Anything else that is water based or oil based should be avoided at all cost (water corrodes and evaporates, oil can attack some alloys and compounds). Or just be patient.
You could also see if there's a computer store near your place and get your fix right away.
To say nothing about things like that cementing cooler to CPU. I have seen one use crazy glue as his cooler mount broke off.
 

Darkbreeze

Titan
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You could probably just as well have run it with nothing between the heat spreader and heatsink for a year and had the same or similar temps anyhow. The heat still transfers without a medium AND if the heat spreader and heatsink base were COMPLETELY flat, and non-porous, there would be no need for thermal compound at all. It just doesn't transfer AS well because they are NOT totally flat (Even with non-machined lapping) and they are porous to some degree or other.
 
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You could probably just as well have run it with nothing between the heat spreader and heatsink for a year and had the same or similar temps anyhow. The heat still transfers without a medium AND if the heat spreader and heatsink base were COMPLETELY flat, and non-porous, there would be no need for thermal compound at all. It just doesn't transfer AS well because they are NOT totally flat (Even with non-machined lapping) and they are porous to some degree or other.
On a 7w CPU, probably. The CPU had a thermal pad originally. It has the weakest 4 core i have ever seen.
 
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InvalidError

Titan
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TIM is not only a silicone or other type of grease, it's just media to hold very. very fine metal, ceramic or other compound micro particles in suspension. Those are the ones that actually conduct heat, not "grease". That's similar to metallic particles in brake pads, same function, providing heat passage to cool better.
Pretty much. Silicone oil is a horrible thermal conductor (less than 0.2W/K), the silicone oil is there mainly to facilitate application, the fine filler particles (with thermal conductivity typically above 10W/K, 50X better than the oil) are what do the bulk of actual heat transfer.
 
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