Help with 3090 Strix Thermal Pads.

[Menko2]

Hi.

I'm doing re-paste into my 3090 Strix and I have a problem with the thickness of the thermal pads for the Vram.

I have Thermalright Odyssey thermal pads (12.8w/mk) of 0.5, 1.0 and 1.5mm.

I haven't made to the gpu yet but the back plate I think the 1.5mm doesn't put enough preasure and I already throw away the foam the vrams had (they were wasted opening the card).

I could stack two thermal pads to make 2.0mm or 2.5mm thickness but I'm not sure if it's a "right" decision.

I can't use the card until I solve this and here it will take 5 days to get 2mm or 3mm thermal pads. So no pc at all.

Anyone knows if 1.5mm will be thick enough or any solution?

 

[Jay-G25]

i just fitted an EK water block to my 3090 strix today and one of the things i noticed were how thick the vram thermal pads are stock .. from my measurements on the back plate they are 2mm thick but this is crushed so new probably 2.5mm thick... the ones next to the gpu are even thicker and crushed were 2.5mm so again probably 3mm new

 

[Menko2]

I did stack the thermal pads until I get proper measurements.

In my case the vrams in the back-plate were thick and foam. Around 2.5mm. I put a stack of 1.5+1.0mm with Thermalright 12.8k/mk.

In the gpu area they are 2.0mm exactly. This ones were not foam as in the back. More hard ones.

The result in the repaste hasn't been that good. Just 2°C degrees less. I used Grizzly Kryonaut Extreme. This one should be slightly better than regular Kryonaut.

My temps are not that bad in bench port royal 72°c max with 80% fan and power limit to the max 123%. But it's just 2°C cooler with this job...not like other results I have seen.

 

[Disco_P]

I did stack the thermal pads until I get proper measurements.

In my case the vrams in the back-plate were thick and foam. Around 2.5mm. I put a stack of 1.5+1.0mm with Thermalright 12.8k/mk.

In the gpu area they are 2.0mm exactly. This ones were not foam as in the back. More hard ones.

The result in the repaste hasn't been that good. Just 2°C degrees less. I used Grizzly Kryonaut Extreme. This one should be slightly better than regular Kryonaut.

My temps are not that bad in bench port royal 72°c max with 80% fan and power limit to the max 123%. But it's just 2°C cooler with this job...not like other results I have seen.

Means they did a good job with the stock paste

 

[Menko2]

Means they did a good job with the stock paste

Either they did a good job or I did a bad one.

I'm going to try with regular Kryonaut and thiner layer. The thermal pads will be Grizzly which they are silicone and will allow more pressure into the gpu die. Kryonaut extreme is really really thick. Regular Kryonaut hopefully might be better.

Let's see how it goes.