Predator 17X GX-792 Heatsink material

lgabardo

Hello guys, a friend of mine that has a RoG laptop put the Conductonaut liquid metal compound on his laptop, and tell me that the temperatures dropped drastically. So I bought it too. But when I opened my predator I found that the core of the sink is made of a different material than the copper, it's nickel? I'm afraid that it could be some type of aluminum, and the compound could destroy it.


If someone could elucidate this for me I'll be grateful.


Regards

vanadium

That's risky. Not sure what it's made of. Could be nickel or aluminium (more common). I would advice to use conductonaut instead. It will also improve temperatures drastically. I have use regular Artic Silver 5 on a G701VI (6700HQ) to repaste it: temperatures dropped from 80°C to 60°C full load. And fan noise has been dramatically reduced too.

JackE

If you suspect aluminum loading, I wouldn't use it on either copper or nickel. Aluminum in the presence of air moisture may actually promote air oxidation of copper & nickel by galvanic action. While only a small amount of copper or nickel oxides are produced, they effectively act as catalysts for air oxidizing aluminum. In doing so, the copper or nickel surfaces usually become spongy and less effective heat exchangers as the aluminum is consumed to its white oxide.   Jack E/NJ         

lgabardo

Thank you guys.

JackE

Probably safest to use pure copper-loaded (Cu) anti-sieze like some loctite brands on copper heatsinks, and pure nickel-loaded (Ni) anti-seize like never-seez on nickel heatsinks. Silver (Ag) pastes probably also OK  since its close to copper and nickel in electronegativity so less likely to cause galvanic issues.  Jack E/NJ