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UPDATE:
After a couple weeks my VRAM temps started creeping back up, Topping out at 88C. The 1.0mm Odyssey pads didnt make great contact, so I 'm going to swap them to 1.5mm and hopefully the temps dont start creeping up again.
The backplate had decent contact but the prints on the pads looked like more thickness could help even more, so I'm also going to swap them out from 1.5mm to 2.0mm Aiyunni pads.
UPDATE #2:
Pad swaps complete and everything back together and leak tested. Those 2.0mm pads for the backplate were too thick, couldnt even get all the screws in lol. But the 1.5mm Odyssey pads on the VRAM now are working good so far, but time will tell if they were thick enough. If you dont hear from me that's probably a good thing but I'll try to update in a month if I don't forget
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I know I shouldn't necro old posts but I was having a hard time finding solid info with swapping thermal pads on this block. Figured I should put this here for others in the future.
Measured the stock pads with a micrometer and they're about 1.8mm. Using those pads the memory temps were good, but wasn't as cool as others 3080s under water. After seeing people say stuff like:
1.) Memclocks can be taken further with more cooling
2.) Someone got better results with 1.0mm pads on the VRAM (***UPDATE: IF USING EXTREME ODYSSEY PADS 1.0MM IS TOO THIN!)
3.) Bykski pads are garbage
I ended up getting:
-85x45x1.0mm Thermalright Extreme Odyssey 12.8 w/mk pad to go directly on VRAM (***UPDATE: IF USING EXTREME ODYSSEY PADS 1.0MM IS TOO THIN!)
-100x100x1.5mm Aiyunni 6 w/mk padding for the rest
(Didn't do full Odyssey because of price, and seems like overkill anyways.)
Results:
GPU-Z memory temperature dropped by 20c, but not sure if these were the best pad sizes:
-For the backplate, 3.0mm pads were way too thick, so I ended up using 1.5mm. The backplate gets warm to the touch so it's working, but if Bykski included ~1.8mm pads for 3090 and we don't have rear memory, seems like 2-2.5mm could be better.
-The VRAM 1.0mm Odyssey pads don't look squished at all. I read these don't compress much and obviously there's good contact but I'll check for indents next time the cards out.
-The 1.5mm Aiyunni pads on the rest of the stuff are slightly squeezed, not as dramatic as the Bykski pads were. Seems like this is the right size.
post edited by albertyouwrong - 2021/07/25 23:11:56