Can Liquid Metal be used on 100% Copper IHS/Heatsinks?

Rev_Night

Rev_Night

Rev_Night

Associate
Joined
3 Aug 2020
Posts
29
Hi all,

I am about to tackle a few liquid metal projects (1 cpu, 2 gpu) using TG Conductonaut and I thought I had all my bases covered. Now I am reading that TG only recommends using it on nickle-based copper IHS/heatsinks. All 3 of the intended items are 100% copper, not nickle based. Does this mean that I can't use liquid metal on 100% copper? Will it need to be replaced in a year? I have zero interest delidding this yearly. A few reddit threads are saying that GA + CU = CU Alloy, can lead to issues.

FYI, I will be using Kapton tape around all dies/heatsinks to help protect the pcb. Delid will be sealed in the 4 corners by crazy glue.

CPU: I7-6700K Delid. Copper IHS from Rockit 88

372871_ith_08583632-5194-455f-9022-114a1332b219_1024x1024.jpg



GPU 1: Sapphire Pulse 5700xt

372872_tc6g2p65f6n31.jpg



GPU 2: Sapphire Nitro 480x with Arctic Cooler Twin Turbo II

372873_coolerturborear.png
 
Yes it can be used on copper without issue, it just leaves a stain which does not harm performance but will not come off.

I used liquid metal on my Sapphire Nitro+ 5700 XT with great success.
 
I've avoided it because of the staining. I feel people wouldn't understand come resale for waterblocks. Otherwise it's fine, providing you only get it on the die.
 
Rev_Night said:
Can you define that please? How much of a less of C in both core and temp?
Click to expand...
Roughly 10-15c core/junction improvement for me, but the paste on my 5700 XT was drier than one of Ghandi's flip flops.

Prior to using LM, there was a 30c difference between the temps, afterwards a peak of 15c difference, sometimes close to 10c or less with a undervolt.
 
You must log in or register to reply here.
Back
Top Bottom