Question Extremely high temps after repaste on Gigabyte 3070 Gaming OC

[Dangel98]

Earlier this year I bought a Gigabyte 3070 Gaming OC on ebay. I'm pretty sure it was used for mining but it worked fine until one or two months ago. GPU temps up at 80° and hot spot at 105° in specific games. I didn't realize immediately that it was the temps of the GPU so it crashed 4-5 times. After some googling I decided I should apply new thermal paste and maybe even pads. This is how it looked after I opened it up:

https://imgur.com/a/9Ifb6y8

View: https://imgur.com/a/9Ifb6y8


So I looked up the thermal pad thickness (0.75, 1.00 and 1.25, found it in some reddit posts about the card) and ordered pads (1.5 and 1.00, Thermal Grizzly Minus Pad 8s) and paste (Gelid GC Extreme) and some cleaning alcohol. I cleaned it up, put everything together and tried it again. As soon as I started Superposition benchmark the temps shot up to abnormal levels and I shut it down. I thought maybe I messed something up and opened it up again. This is how it looked: https://imgur.com/a/PL1Nl5U

I do see the heavy indenture in the thermal pad at the top right which was a rubber spacer from Gigabyte. I removed it now because it seemed counterproductive. I also made a bit of a mess with the thermal paste as it was thicker than I expected and it stuck to my spatula a lot. Other than that I don't see anything that could be wrong so I am out of ideas.

 

[Phaaze88]

Earlier this year I bought a Gigabyte 3070 Gaming OC on ebay. I'm pretty sure it was used for mining but it worked fine until one or two months ago. GPU temps up at 80° and hot spot at 105° in specific games. I didn't realize immediately that it was the temps of the GPU so it crashed 4-5 times. After some googling I decided I should apply new thermal paste and maybe even pads. This is how it looked after I opened it up:

https://imgur.com/a/9Ifb6y8

View: https://imgur.com/a/9Ifb6y8


So I looked up the thermal pad thickness (0.75, 1.00 and 1.25, found it in some reddit posts about the card) and ordered pads (1.5 and 1.00, Thermal Grizzly Minus Pad 8s) and paste (Gelid GC Extreme) and some cleaning alcohol. I cleaned it up, put everything together and tried it again. As soon as I started Superposition benchmark the temps shot up to abnormal levels and I shut it down. I thought maybe I messed something up and opened it up again. This is how it looked: https://imgur.com/a/PL1Nl5U

I do see the heavy indenture in the thermal pad at the top right which was a rubber spacer from Gigabyte. I removed it now because it seemed counterproductive. I also made a bit of a mess with the thermal paste as it was thicker than I expected and it stuck to my spatula a lot. Other than that I don't see anything that could be wrong so I am out of ideas.

The only issue with excess paste is that it's a pain to clean up.
You've got full die coverage, so that's good, but there is a lot around the center of the die.
This is likely another case of thermal pad replacement gone wrong. That blob of paste around the center is proof.
You'll need to try again with pads. Nay, I wouldn't know what pads to suggest. The problem around pads is that all the different companies/brands don't follow a testing standard; what works on one card won't work on them all.

The original pads looked to be intact too - just needed to clean some of the caked up dust around them, and the card would've been fine with just a repaste.

 

[Unolocogringo]

Pads have different thicknesses and densities.try thinner pads on the memory chips . Denser pads do not compress as much as less dense ones.
Your paste spread looks to be thicker on one side.
Not your spreading ,but spreading from installing.

 

[Dangel98]

The original pads looked to be intact too - just needed to clean some of the caked up dust around them, and the card would've been fine with just a repaste.

Maybe, they did totally crumble when I removed them though. They completely fell apart. Now it's too late anyway and I'll have to deal with it.

I'll try the same brand pads but thinner on the memory chips. I figure if I start using other brands I'll just run into the same problem again.

 

[Dangel98]

Thank you to you both. I replaced the 1.5 with 1 and the 1 with 0.5 mm pads and everything works fine.