Has pad sizes changed?

[Chris 7978]

Hi guys did a 3090not so long ago, got a new 3080FE and doing it put back together and vram high and GPU shot up, used Gelid ultimate 2mm front and back.. now I’d say the sliver plate the GPU sits on now has a pattern type not plain smooth..also seem to think the new FEs need 1.5mm now any advice before I buy them..

 

[uscool]

Use 1.5mm ultimate gelid for 3080fe on die side for vram and VRM , not sure for backplate but 2mm should be fine

The early guides for 3080fe mostly used 2mm extreme gelid which are soft

Recently these don't work just giving high gpu temps reason being they don't compress enough for the die to make proper contact with heatsink

Supposedly reason being they aren't as soft anymore,

 

[Chris 7978]

Use 1.5mm ultimate gelid for 3080fe on die side for vram and VRM , not sure for backplate but 2mm should be fine

The early guides for 3080fe mostly used 2mm extreme gelid which are soft

Recently these don't work just giving high gpu temps reason being they don't compress enough for the die to make proper contact with heatsink

Supposedly reason being they aren't as soft anymore,

Thanks bit strange as didn’t have this issue with the 2mm for the 3090 I did same pads but gigabyte card.. will have to find some now which might be a pain as working in France atm

 

[uscool]

That's because the gigabyte will have different designed heatsink , different thickness working etc

 

[Chris 7978]

That's because the gigabyte will have different designed heatsink , different thickness working etc

I know this but reviewed to do the 3080fe but it seems from about sept/Oct 2mm for the FE is to fat

 

[uscool]

I know this but reviewed to do the 3080fe but it seems from about sept/Oct 2mm for the FE is to fat

Well either Nvidia changed something with the heatsink or gelid make the pads harder than they used to , either way 1.5mm ultimate work now

 

[Mart82]

I know this but reviewed to do the 3080fe but it seems from about sept/Oct 2mm for the FE is to fat

That's about right in my experience.
March 3080 FE was 2mm front, 3mm back Gelid Extreme (Not Ultimate).
October 3080Ti FE I ordered exactly the same pads. Mem temps good, but GPU was throttling. Had to buy 1.5mm Gelid Extreme for the front instead

 

[Chris 7978]

I’m going 1.5 front 2 back apart from the 9.5 one just leaving that on back plate

 

[Falkentyne]

Well either Nvidia changed something with the heatsink or gelid make the pads harder than they used to , either way 1.5mm ultimate work now

The guy who makes Kritical pads says that Gelid changed the hardness or formulation of their Extreme pads so that they are harder than before (but not as hard as Ultimates). I can't confirm or deny that personally, though.

 

[uscool]

That's what I think, with ultimate I get a better vram temps by about 2 - 3c over the extreme pads makes sense the ultimate being rated 15 W/mK Vs 12 W/mK

I wonder what the thickness of the Kritical pads are also states they are 20 W/mK