What card are you looking for?  I have the thermal pad dimensions.

EVGATech_LeeM
What card are you looking for?  I have the thermal pad dimensions.

I appreciate you reaching out. I have a 3080 FTW3 Ultra with a Hybrid Kit. The kit comes with pre-applied pads, 2mm (and please correct me if i am wrong) on the copper plate for vram, the fan shroud with 2mm pads for the mosfets and 1mm pads for the chokes. These pads are very soft and get good compression.
 
I also do not know the size on the stock ftw3 cooler. Any way I could get replacement sets for each so I don't have to chance it on aftermarket pads?
 
The main point of my post was that most people that want to swap out for better thermal pads, buy whatever size that comes stock, but do not take into consideration the hardness of the aftermarket pads they are buying. Just because pads may offer better conductivity does not mean they will perform better if they are not getting the coverage or compression that is needed. Another question: How sensitive would a metric like thermal junction be to a temperature difference of + 2-3º ambient? If a card is not throttling at 19ºC ambient, but is now at 22ºC, it is the change in room temp or how the card is being cooled, maybe the better thermal pads are not doing the job as intended?

ty_ger07
1) After reading other people's experiences, I wouldn't do it. Far too many people have seen no thermal improvement and many have actually seen worse thermal performance due to contact pressure issues.
2) The way pads and thermal paste are thermally characterized is not standardized. The testing temperature is not standardized, and this has a huge impact of the W/mk result. Some are tested at 20c. Some are tested at 60c. The difference in W/mk result is massive when tested at different temperatures. This makes the W/mk comparison useless when making buying choices. Since you can't compare pads based on W/mk, it means you would have to buy a bunch of different ones and compare them by physically testing them. A lot of time and expense for a tiny difference in thermal performance (in the grand scheme of things). Not worth it.

I starting to believe that it is just not worth it. I cannot discredit a lot of people that have posted about better thermals through just swapping out pads and paste. There are multiple variables to consider that not everyone may realize or think to disclose. Some may just get lucky. Maybe these hybrid kits are sensitive to different pads.

I want the thermal pad dimensions for 3090 FTW3 ULTRA GAMING. I'm thinking to replace it. Especially for the pad between the backplate and the VRAM. 

EVGATech_LeeM
What card are you looking for?  I have the thermal pad dimensions.

quote=skyline090]

EVGATech_LeeM
What card are you looking for?  I have the thermal pad dimensions.

I appreciate you reaching out. I have a 3080 FTW3 Ultra with a Hybrid Kit. The kit comes with pre-applied pads, 2mm (and please correct me if i am wrong) on the copper plate for vram, the fan shroud with 2mm pads for the mosfets and 1mm pads for the chokes. These pads are very soft and get good compression.
 
I also do not know the size on the stock ftw3 cooler. Any way I could get replacement sets for each so I don't have to chance it on aftermarket pads?
 
The main point of my post was that most people that want to swap out for better thermal pads, buy whatever size that comes stock, but do not take into consideration the hardness of the aftermarket pads they are buying. Just because pads may offer better conductivity does not mean they will perform better if they are not getting the coverage or compression that is needed. Another question: How sensitive would a metric like thermal junction be to a temperature difference of + 2-3º ambient? If a card is not throttling at 19ºC ambient, but is now at 22ºC, it is the change in room temp or how the card is being cooled, maybe the better thermal pads are not doing the job as intended?


What evga support sent me when I created a ticket for my 3080 FTW3 Ultra:

EVGATech_LeeM
Sorry for the delay; I wanted to confirm something with the HYBRID cards/kits.
 
3090/3080 FTW3 Pads:

Spoiler

1pcs: 7.7mm x 6.5mm x 2.75mm
2pcs: 53mm x 14mm x 2.25mm
1pcs: 37.5mm x 14mm x 2.25mm
1pcs: 15mm x 12mm x 2.25mm
1pcs: 110mm x 5mm x 2.5mm

close

 
3090/3080 FTW3 BP Pads:

Spoiler

2pcs: 51mm x 12mm x 2mm
1pcs: 38mm x 12mm x 2mm
1pcs: 14mm x 10mm x 2mm

close

 
3090/3080 FTW3 HYBRID/HYBRID Kit Pads:

Spoiler

Thermal pads for VRAM heatsink:
2pcs: 49mm x 13mm x 2.25mm
1pcs: 37.5mm x 12mm x 2.25mm
1pcs: 13mm x 13mm x 2.25mm
 
Thermal Pads for standalone heatsink:
1pcs: 80mm x 4.5mm x 2.25mm
1pcs: 75mm x 11mm x 0.75mm - Note: This thermal pad is not initially on the HYBRID card.  Thermal putty is used in its place.  If you remove/clean the thermal putty, then replace it with a thermal pad of these dimensions.
 
Thermal pads for heatsink connected to the fan:
1pcs: 106mm x 5mm x 2.25mm
1pcs: 105mm x 11mm x 0.75mm - Note: This thermal pad is not initially on the HYBRID card.  Thermal putty is used in its place.  If you remove/clean the thermal putty, then replace it with a thermal pad of these dimensions.

close

+1 
 

Fujipoly Engineering Resource Library
 
You want about 10% compression
 
Pads that are too firm - is bad - can stress the pcb & solder joints
 
 
 
EKWB - How to correctly apply the thermal interface material (TIM)?
 
(excerpt)
When you remove the cooler you should clearly see the imprint of the edges of the elements on the PCB. When the edges aren’t visible you have no or bad contact. The contact can also be too good. You can observe that when you check if the motherboard/graphics card is severely bent in the area of the thermal pad. In extreme cases you can have a direct contact with the elements and that may lead to short circuiting your hardware.
 

EVGATech_LeeM
Sorry for the delay; I wanted to confirm something with the HYBRID cards/kits.
 
3090/3080 FTW3 Pads:

Spoiler

1pcs: 7.7mm x 6.5mm x 2.75mm
2pcs: 53mm x 14mm x 2.25mm
1pcs: 37.5mm x 14mm x 2.25mm
1pcs: 15mm x 12mm x 2.25mm
1pcs: 110mm x 5mm x 2.5mm

close

 
3090/3080 FTW3 BP Pads:

Spoiler

2pcs: 51mm x 12mm x 2mm
1pcs: 38mm x 12mm x 2mm
1pcs: 14mm x 10mm x 2mm

close

 
3090/3080 FTW3 HYBRID/HYBRID Kit Pads:

Spoiler

Thermal pads for VRAM heatsink:
2pcs: 49mm x 13mm x 2.25mm
1pcs: 37.5mm x 12mm x 2.25mm
1pcs: 13mm x 13mm x 2.25mm
 
Thermal pads for standalone heatsink:
1pcs: 80mm x 4.5mm x 2.25mm
1pcs: 75mm x 11mm x 0.75mm - Note: This thermal pad is not initially on the HYBRID card.  Thermal putty is used in its place.  If you remove/clean the thermal putty, then replace it with a thermal pad of these dimensions.
 
Thermal pads for heatsink connected to the fan:
1pcs: 106mm x 5mm x 2.25mm
1pcs: 105mm x 11mm x 0.75mm - Note: This thermal pad is not initially on the HYBRID card.  Thermal putty is used in its place.  If you remove/clean the thermal putty, then replace it with a thermal pad of these dimensions.

close

Noob question, is it safe to assume that the BP pad thickness is referring to the backplate side? Just want to confirm before I order some.

oaqewado
Any official info on the Thermal Pad dimensions for the 3080 XC3 Hybrid Kit????

Can we get an update on this? I need to put my air cooler back on my 3080 XC3 and need to know what thickness pads to use because the putty tore when removing the air cooler initially, so I did a good cleaning and removed all the putty.

Yes mine came with thermal paste on the areas between the extra copper plate and the actual cooler.

Krisnatharok
Yes mine came with thermal paste on the areas between the extra copper plate and the actual cooler.

 
Was yours an upgrade kit, or the OEM assembled Hybrid? I'm not entirely sure if I checked for pre-applied thermal paste on mine, but I do know it came with a small packet of paste and another small foam bit that I didn't know how I was supposed to use.

Krisnatharok

benwards925

Krisnatharok
Yes mine came with thermal paste on the areas between the extra copper plate and the actual cooler.

Was yours an upgrade kit, or the OEM assembled Hybrid? I'm not entirely sure if I checked for pre-applied thermal paste on mine, but I do know it came with a small packet of paste and another small foam bit that I didn't know how I was supposed to use.

I got the hybrid upgrade kit, and it indeed it all came pre-applied on the middle plate and the core cooler as well.  The tube is if you have to remove or remount it. I don't know what EVGA uses, so I'd recommend using something like Arctic Silver or Grizzly (or whatever your favorite TIM is).

Well, I don't remember looking at the bottom of the plate, so maybe it's there, I'm not going to remove it just to check. I'm hoping my 3070 will get stepped up to a 3090 soon and I can sell this 3080 to my buddy.
It that case, I'll have to re-paste it anyway and will verify there is thermal compound. 

EVGATech_LeeM
Sorry for the delay; I wanted to confirm something with the HYBRID cards/kits.
 
3090/3080 FTW3 Pads:

Spoiler

1pcs: 7.7mm x 6.5mm x 2.75mm
2pcs: 53mm x 14mm x 2.25mm
1pcs: 37.5mm x 14mm x 2.25mm
1pcs: 15mm x 12mm x 2.25mm
1pcs: 110mm x 5mm x 2.5mm

close

 
3090/3080 FTW3 BP Pads:

Spoiler

2pcs: 51mm x 12mm x 2mm
1pcs: 38mm x 12mm x 2mm
1pcs: 14mm x 10mm x 2mm

close

 
3090/3080 FTW3 HYBRID/HYBRID Kit Pads:

Spoiler

Thermal pads for VRAM heatsink:
2pcs: 49mm x 13mm x 2.25mm
1pcs: 37.5mm x 12mm x 2.25mm
1pcs: 13mm x 13mm x 2.25mm
 
Thermal pads for standalone heatsink:
1pcs: 80mm x 4.5mm x 2.25mm
1pcs: 75mm x 11mm x 0.75mm - Note: This thermal pad is not initially on the HYBRID card.  Thermal putty is used in its place.  If you remove/clean the thermal putty, then replace it with a thermal pad of these dimensions.
 
Thermal pads for heatsink connected to the fan:
1pcs: 106mm x 5mm x 2.25mm
1pcs: 105mm x 11mm x 0.75mm - Note: This thermal pad is not initially on the HYBRID card.  Thermal putty is used in its place.  If you remove/clean the thermal putty, then replace it with a thermal pad of these dimensions.

close

Can you confirm where the 7.7mm x 6.5mm x 2.75mm pad is that you speak of? I've been able to match most of these up with the a photo I found of the broken down PCB, but I don't see this particular pad anywhere. Can you confirm?
 

ty_ger07
1) After reading other people's experiences with replacing thermal pads/putty on these cards, I wouldn't do it. Far too many people have seen no thermal improvement and many have actually seen worse thermal performance due to contact pressure issues. Some have spent weeks testing, tweaking, and buying different products just trying to get there temperatures back to what they were stock.
2) The way pads and thermal paste are thermally characterized is not standardized. The testing temperature is not standardized, and this has a huge impact of the W/mk result. Some are tested at 20c. Some are tested at 60c. The difference in W/mk result is massive when tested at different temperatures. This makes the W/mk comparison useless when making buying choices. Since you can't compare pads based on W/mk, it means you would have to buy a bunch of different ones and compare them by physically testing them. A lot of time and expense for a tiny difference in thermal performance (in the grand scheme of things). Not worth it.

I can confirm. I'm pretty annoyed. I paid $144 for a 3090 FTW3 Hybrid kit and my mem temps went from 92C in games to 100C in games unless I make the memory -200.

Good job, EVGA. I love you guys, but y'all always seem to find a way to screw up every single generation of GPU releases.

Now I'm over here looking for 2.25mm thermal pads so I can put the stock cooler on and sell it for a Strix. Thanks. Because it's either that, or I buy an EK block and go full custom loop just to get 72-78C mem temps like my Strix had. What a joke.

Mine's a 3090 as well.. just gonna test out 2.5mm pads. Otherwise I'm selling this garbage for a Strix. And it's terrible cause EVGA has the best customer service.