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Dooogy0

Dooogy0

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The temperature delta difference between the "best" pastes and "normal" ones differ by a few negligible centigrades. For laptops, the primary concern will be paste longevity and electrical conductivity of the TIM.

Since you're apply paste on the bare die of the CPU/GPU.



Pastes to avoid:
•Metal pastes like Arctic Silver
•IC Diamond - the carbon contents of the paste may scratch the laser etched markings on the CPU/GPU die
•Extreme pastes like CLU/CLP - They don't last long and corrodes the aluminium, may cause "welding effect" on copper cold plates/ certain CPU dies.
https://www.youtube.com/watch?v=JHHI2Lk79cY
https://www.youtube.com/watch?v=IZkzxWZETds

Overall price, longevity and electrical conductivity matters the most.
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Daredevil
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Hi

11-Feb-2017 01:47:18

Dooogy0

Dooogy0

Posts: 7,414 Rune Posts by user Forum Profile RuneMetrics Profile
Weyburns said :
Dooogy0 said :
Metal pastes like Arctic Silver

when you posted this i was like shit i just ordered some arctic silver 5, but based on your graph arctic silver 5 is like one of the best to get? lol

M888,


I guess as long as you do not overapply and cake the CPU die with that stuff you're fine on Skylake. Don't bridge the surface contact pads (golden circles near the mirror surface) and you'll probably be alright. But I'd still recommend ceramic pastes over the bare CPU.

Though on GPU chips in general with capacitors of some sort on the chip's surface, non electrically conductive/capacitive pastes are the safest bet. Hand tighten the heat sink with regular screwdrivers
just enough
to hold the heat sink in place. Do not machine tighten those and risk ripping the screw threads.

I think the safety outweighs the 1-2C temperature improvement. That aside, I think the relative viscosity of AS5 compared to a few others I tried (starting with the lowest):
AS5~Gelid GC Extreme -> MX4/MX2 -> NT-H1 -> IC Diamond.

IMHO, pastes similar to NT-H1 and Arctic MX are ideal for laptop heat sinks with low-moderate mounting pressure.
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Daredevil
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14-Feb-2017 06:37:38

Dooogy0

Dooogy0

Posts: 7,414 Rune Posts by user Forum Profile RuneMetrics Profile
Weyburns said :
Dooogy0 said :
I guess as long as you do not overapply and cake the CPU die with that stuff you're fine on Skylake.

so what would you use? lol

Well if you meant the paste, probably something similar to a tube of MX-4 or NT-H1 or Coolermaster (basically normal paste with a silicone or ceramic base). Whatever's available, fast selling (so you don't get paste that's shelved for a considerable period) and reasonably priced.

If you're asking about the application method, finger method (with / without gloves or a plastic bag).
It is by far the most consistent method for spreading paste especially on a small surface area.
I'd keep my fingers clean before lightly rubbing a coat of paste (for covering sweat and what not) over it before a small application on the die for spreading.

https://youtu.be/r2MEAnZ3swQ
https://youtu.be/8mfykKXqDww?t=11m36s


My NT-H1 on my current laptop was applied over a year ago. The paste hasn't degraded and isn't in need of a reapply for the forseeable future. Overall, most off-the-shelf normal pastes should perform better than the pre-applied ones.

If you'd like to keep the AS5 aside for future desktop use, probably roll it up in a zipper bag and store them in a cool location. Do note, AS5 that's been shelved for a long period may eject "oil" you need to remove on the first application.
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Daredevil
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14-Feb-2017 22:47:31 - Last edited on 14-Feb-2017 23:08:11 by Dooogy0

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