Liquid metal for cooling laptop? (Dell E6420)

Gunner1531

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Jan 11, 2013
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Okay so i have a Dell E6420 with i7 2720qm and quadro 4200m

this laptop is a great performer it just gets too hot. No mods it would hit 102c with fresh thermal paste and throttle

i first cut a hole the size of the fan into the bottom of the case and put mesh in it. THAT HELPED A LOT. cpu temps went from 102c @ 1.8ghz to 88c @ 3.1ghz of the 3.3 turbo Fantastic!
also helped gpu, You know after the good ole copper slug for the gpu sag 100c on gpu and now its 75c

Now i have seen videos of people using liquid metal BUT the e6420 has a copper and aluminum heatsink and i know gallium eats away aluminum.. sooo would it be safe to use? like if the copper will be the only thing hitting the liquid metal would it be fine? or will it eat away at the aluminum just by being near it.

here is a picture of the heatsink so you have an idea on what im talking about

 

Lutfij

Splendid
Moderator
If you do use liquid metal you wont be able to pry it off in case you have to do maintenance runs on your laptop. On top of that, it'll eat away at the aluminium eventually since some will spill over as your heat cycle the compound/alloy.

If you might state, what TIM are you using? What sort of taxation do you place on the workstation laptop?
 

Gunner1531

Honorable
Jan 11, 2013
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I am currently using arctic silver 5 i have also used IC Diamond. I use this laptop for a bunch of different things such as,
Using a EGPU for some gaming when on the road. I use it to render videos and edit photos. i also play around in Cinema 4D things like that.

I know if you use LM then you have to get it hot to have a chance to remove it like get the heatsink hot and remove it which isnt a problem for me i can manage with that. What if i did something such as creating a barrier between the copper and aluminum ? like if i take the heatsink and grind down some of the aluminum just enough to put copper or just some kind of filler in place of it. Like if i were to use some high temp tape so if there was spill over there would be no way for it to touch the aluminum . i dont know this is a project that i have been wanting to try for a while but i just dont wanna risk the heatsink because i cant ever find the dual heatpipe one for a good price online.
 
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