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Answered3090 FTW3 Thermal Pads

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moomeacow
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Re: 3090 FTW3 Thermal Pads 2021/04/30 19:34:51 (permalink)
Jsunn
Saw this on reddit. It's for the 3080 FTW3, but should apply to the 3090, I think.
https://www.reddit.com/r/...p&utm_source=share

that is wrong I tried following something similar and didn't turn out good, vrm 2mm is to short had to use stacked 2+1 to make it 3mm, vrm 1mm is to short had to use 1.5mm, memory 2mm is to short had to use 1+1mm stacked on paper it should be 2 but stacked I think gives it that little extra, back plate used 3mm all around. This is for the 3080 I have not done my 3090 yet. and holy **** took it apart 3 times to get it right cause the post I was following had the same spec listed. Wasted a bunch of pads and thermalright pads aren't cheap. Just an FYI for other users who want to do it. 
#61
Jsunn
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Re: 3090 FTW3 Thermal Pads 2021/04/30 19:39:32 (permalink)
Wow! Thanks! I just ordered a bunch of pads that may not work...
So does anyone have a definite answer to what thickness of pads that should be used and where?!

The thickness that the EVGA tech guy stated, you can't buy, so I'm wondering if he was talking about the distances separating the components from the heatsink?

I'm so confused about this!
J

i9 10900K @ 5.3GHz 1.35v 
32Gb 3600MHz
Asus Maximus Formula XII 
EVGA RTX 3090 Kingpin
Watercool all the things
https://builds.gg/builds/...ustom-built-case-26023
#62
moomeacow
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Re: 3090 FTW3 Thermal Pads 2021/04/30 19:39:39 (permalink)
heres what I did in the blue, stock temps were hitting thermal limits within seconds, after pad replacement im at like 86 temp at 65 fan memory junction 
https://gyazo.com/48feab5251e1443e3f44e8cf615ba625
 
i don't have 3mm so back plate I did 1+2
post edited by moomeacow - 2021/04/30 19:42:50
#63
Dvijuha
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Re: 3090 FTW3 Thermal Pads 2021/05/02 11:28:33 (permalink)
moomeacow
Jsunn
Saw this on reddit. It's for the 3080 FTW3, but should apply to the 3090, I think.


that is wrong I tried following something similar and didn't turn out good, vrm 2mm is to short had to use stacked 2+1 to make it 3mm, vrm 1mm is to short had to use 1.5mm, memory 2mm is to short had to use 1+1mm stacked on paper it should be 2 but stacked I think gives it that little extra, back plate used 3mm all around. This is for the 3080 I have not done my 3090 yet. and holy **** took it apart 3 times to get it right cause the post I was following had the same spec listed. Wasted a bunch of pads and thermalright pads aren't cheap. Just an FYI for other users who want to do it. 


i use on 3080 ftw3 
memory 2mm thermal pads (Iceberg Thermal DriftICE 13w/mk + thermal paste ALPHACOOL Phobya NanoGrease Extreme 3.5g 16W/mK)
backplate 2+1mm 
vrm stock because thermal on vrm is fine
chokes 1mm (Iceberg Thermal DriftICE 13wt/mk)
memory themperature drops -20C and all is touched the radiator
 
post edited by Dvijuha - 2021/05/02 12:39:19
#64
Vanquish1124
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Re: 3090 FTW3 Thermal Pads 2021/05/05 08:20:00 (permalink)
moomeacow
heres what I did in the blue, stock temps were hitting thermal limits within seconds, after pad replacement im at like 86 temp at 65 fan memory junction 

 
i don't have 3mm so back plate I did 1+2


Thanks for your updates. Appreciate the time/effort you put in.
I've noticed my VRAM temps creep up on my 3090 over a short period of ownership (less than one month). I believe the gradual flexing of the card might be (ever so slightly) separating the thermal pads from the back plate. Just a hunch, no hard evidence. Looking at changing those pads, and I might use your 3mm suggestion.

The act of war is the last option of a democracy.
- Joseph C. Wilson
 
#65
Vanquish1124
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Re: 3090 FTW3 Thermal Pads 2021/05/06 18:21:06 (permalink)
moomeacow
Jsunn
Saw this on reddit. It's for the 3080 FTW3, but should apply to the 3090, I think.


that is wrong I tried following something similar and didn't turn out good, vrm 2mm is to short had to use stacked 2+1 to make it 3mm, vrm 1mm is to short had to use 1.5mm, memory 2mm is to short had to use 1+1mm stacked on paper it should be 2 but stacked I think gives it that little extra, back plate used 3mm all around. This is for the 3080 I have not done my 3090 yet. and holy **** took it apart 3 times to get it right cause the post I was following had the same spec listed. Wasted a bunch of pads and thermalright pads aren't cheap. Just an FYI for other users who want to do it. 


Was thinking about this tonight; wouldn't the VRAM back plate pads heights vary between the 3080 and the 3090? The 3080 does not have memory modules on the back (or I guess top) of the card while the 3090 does? I personally don't have a 3080 to check but that was my understanding.



The act of war is the last option of a democracy.
- Joseph C. Wilson
 
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Dvijuha
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Re: 3090 FTW3 Thermal Pads 2021/05/07 13:12:10 (permalink)
 
 
post edited by Dvijuha - 2021/05/07 13:15:42
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Dvijuha
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Re: 3090 FTW3 Thermal Pads 2021/05/07 13:15:21 (permalink)
Vanquish1124
moomeacow
Jsunn
Saw this on reddit. It's for the 3080 FTW3, but should apply to the 3090, I think.


that is wrong I tried following something similar and didn't turn out good, vrm 2mm is to short had to use stacked 2+1 to make it 3mm, vrm 1mm is to short had to use 1.5mm, memory 2mm is to short had to use 1+1mm stacked on paper it should be 2 but stacked I think gives it that little extra, back plate used 3mm all around. This is for the 3080 I have not done my 3090 yet. and holy **** took it apart 3 times to get it right cause the post I was following had the same spec listed. Wasted a bunch of pads and thermalright pads aren't cheap. Just an FYI for other users who want to do it. 


Was thinking about this tonight; wouldn't the VRAM back plate pads heights vary between the 3080 and the 3090? The 3080 does not have memory modules on the back (or I guess top) of the card while the 3090 does? I personally don't have a 3080 to check but that was my understanding.




Of course it will be different. At 3090, the backplate will need to use 2 or 2.5 mm pads (they can be squeezed, if it is too high)
post edited by Dvijuha - 2021/05/07 13:17:05
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moomeacow
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Re: 3090 FTW3 Thermal Pads 2021/05/07 13:19:51 (permalink)
Dvijuha
Vanquish1124
moomeacow
Jsunn
Saw this on reddit. It's for the 3080 FTW3, but should apply to the 3090, I think.


that is wrong I tried following something similar and didn't turn out good, vrm 2mm is to short had to use stacked 2+1 to make it 3mm, vrm 1mm is to short had to use 1.5mm, memory 2mm is to short had to use 1+1mm stacked on paper it should be 2 but stacked I think gives it that little extra, back plate used 3mm all around. This is for the 3080 I have not done my 3090 yet. and holy **** took it apart 3 times to get it right cause the post I was following had the same spec listed. Wasted a bunch of pads and thermalright pads aren't cheap. Just an FYI for other users who want to do it. 


Was thinking about this tonight; wouldn't the VRAM back plate pads heights vary between the 3080 and the 3090? The 3080 does not have memory modules on the back (or I guess top) of the card while the 3090 does? I personally don't have a 3080 to check but that was my understanding.




Of course it will be different. At 3090, the backplate will need to use 2 or 2.5 mm pads (they can be squeezed, if it is too high)


read on another post back should be 2mm for 3090, for the 3080 I used 3mm
 
#69
supaxtion
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Re: 3090 FTW3 Thermal Pads 2021/05/09 17:50:36 (permalink)
EVGA_JacobF
Memory is 2.25mm, VRM 2.85mm, back VRAM is 2mm




same for 3080/3090 FTW3 Hybrid kit?
#70
kric2825
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Re: 3090 FTW3 Thermal Pads 2021/05/14 10:18:24 (permalink)
Can anyone confirm the Pad Sizes for a 3090 Ultra?
#71
kevinc313
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Re: 3090 FTW3 Thermal Pads 2021/05/14 18:19:11 (permalink)
Has anyone tried out thermal putty? 10W/m-K silicone. Since it's putty you can form it to any shape or thickness you want.
 
https://www.overclock.net/threads/3080-3090-junction-temp-cooling-thread.1777046/page-13#post-28791579
 
https://www.digikey.com/e...gy/TG-PP10-50G/6204863
#72
JGalland
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Re: 3090 FTW3 Thermal Pads 2021/05/20 07:19:38 (permalink)
What pads would you guys recommand for the front side of the PCB ? (where the GPU die actually is)
I've heard Gelid Extreme is good because it's quite soft.
 
It's too bad there is no tutorial yet with pads recommandations and exact placements :/
 
#73
knightostjohn
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Re: 3090 FTW3 Thermal Pads 2021/06/02 09:14:45 (permalink)
And if you're going to be upgrading your pads anyway, I'd recommend this brand with 17 W/mK: https://www.amazon.com/dp/B00ZSELP3O/?pldnSite=1 I'm not sure if they make it in 2.5 or larger tho
#74
Rcrist90
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Re: 3090 FTW3 Thermal Pads 2021/06/10 11:03:48 (permalink)
I'm so sick of this!


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#75
Gonzhilla
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Re: 3090 FTW3 Thermal Pads 2021/06/10 11:27:06 (permalink)
Rcrist90
I'm so sick of this!


Me too.... So sick of it.
#76
lophilip
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Re: 3090 FTW3 Thermal Pads 2021/07/07 17:13:41 (permalink)
For EVGA 3090 FTW:
 
Do not use thermal pads, they do not perform as well as the stock thermal gel that EVGA uses. I tried various thermal pads (over $100 worth) and I could not get better memory junction temperatures then stock. You must use thermal putty.

This is what I used TG-PP10-50 (if you are American, use digikey.com web site to buy. I used digikey.ca to buy):


 
It's expensive, but it works way better then thermal pads. You will need lots, it took 20g just to do the backplate. If you're redoing the entire card order 50g (maybe even 100g).

For the GPU use a good thermal paste, like noctula.
 
Edit:
for some reason I can't post a URL link to digikey. I will post picture.


post edited by lophilip - 2021/07/07 17:21:15

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