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covertsurfer

macrumors 6502a
Original poster
Jan 18, 2007
579
7
From a few reports I've seen the thermal paste on new 16" is poor and in some cases Apple service providers have changed the paste and temps have dropped 10c.

Would doing this myself invalidate warranty?
 
Technically yes, but chances are they will never know though, especially with thermal paste!
 
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Apples Paste has to have a long life span, this is why they use what they use.
this is generally the case with all Manufacturers of Computers/Gpu's etc..
it's neither poor nor great, it's an "ok" Paste.

a better performing, more fluid Paste should be replaced every couple Years, thats the Reason.

A Kryonaut will perform a lot better, more performance (less throttling), less noise, lower temps, probably longer battery.

So there's a lot to gain, but also a lot to loose because of the high price tag of the machine.


the 16" cooling is decent, if you don't have Problems i would not risk the warranty.
 
a better performing, more fluid Paste should be replaced every couple Years, thats the Reason.

Artic MX-4 has a life of 8-years - I've replaced the thermal paste in my 15" with this stuff and what a difference, thermal throttling is still there but no way near as bad as it was, and the machine is so much cooler and not the testicle frier that is once was.

It's a nerve-wracking job to do if you're not used to taking laptops to bits, but recommended.

The thermal grizzly paste (IMO) is better for overclocked PCs where you can easily get to components to replace the thermal paste every 8-12months, so not recommended for laptops as you won't want to be changing this stuff frequently.

What I've personally witnessed changing the paste is that the machine is cooler on the bottom and not so warm where the CPU and GPU are - feels more like the heat is spread out over the entire base, and as a result cooler - I've also noted that when cranking it up, more heat comes from the vents when the fans kick in, so would suggest that changing the paste has made better thermal contact and as a result the heat is transferring along the copper piping and being expelled by the fans.

It's also worth noting that the fans seem to run a lot quieter, and will probably increase the battery life when using as a result.
 
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Liquid metal is good in theory... - and gives a couple more degrees headroom - my advice is to cover the non-thermal parts of the CPU with a conformal coating if you do go down that road as being a liquid metal it's liquid and conductive.

BUT.....

I wouldn't use it myself as from experiments in the past it has welded the heatsink to the CPU and makes removal interesting.
 
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