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AnsweredHot!3090 FTW3 Thermal Pads

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sparetimepc
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2020/10/19 01:30:18 (permalink)
So has anyone seen yet what the thermal pad thickness is on the 3090 FTW3. If not EVGA could you please let us know. Thanks




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chumeniuk
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Re: 3090 FTW3 Thermal Pads 2020/10/19 03:56:35 (permalink)
Some of it's also putty and curious what pad could be used in its place.
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Re: 3090 FTW3 Thermal Pads 2020/10/19 04:32:37 (permalink)
While I don't know the thickness it might be worth checking the tear down videos. I think that Gamers Nexus took apart a 3090 FTW3. I am guessing that anyone watching that video would want to know information like this and it probably came up.

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Re: 3090 FTW3 Thermal Pads 2020/10/19 09:18:37 (permalink)
It is hard to get an accurate measurement of the TIM pad thickness on my EVGA RTX 3090 FTW3 Ultra when I removed the heat sink assembly for the purposes of re-applying the GPU TIM.
The Memory TIM pads are of a very soft consistency and can be broken/stretched or marred when removing if you just try and pull them off.
As shown in the photos, I managed to lift them off with a wooden flat stick, But not without causing damage to the soft putty like TIM.
As far as that super soft putty that was "pasted" between and on the VRM's, I just cleaned all that off with Isopropyl alcohol and used some 1mm TIM strips as a temporary "fix" until I run some VRM temperature checks and compare it to my SECOND FTW3 Ultra that I have not disassembled yet.
The photo of the back of the PCB with the Metal "heat sink" removed shows the memory TIM after I removed it with little damage to them because I did not try and remove them from the chips as I did on the front PCB components.
 
 

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Re: 3090 FTW3 Thermal Pads 2020/10/19 11:17:18 (permalink)
All the pads are too thick :(
 
the 1mm is getting an imprint? that "feels" to small.. my gut is wrong much of the time. :D 
 
/me waits for someone to make a waterblock....

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Re: 3090 FTW3 Thermal Pads 2020/10/19 11:33:17 (permalink)
They vary in size depending on the location.


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Re: 3090 FTW3 Thermal Pads 2020/10/19 11:42:17 (permalink)
On a related note, if one were to attach a water block (Hydro Copper or otherwise), and later have to reattach the original cooler for an RMA, that would likely require replacing the thermal interface materials (especially the putty). Would that cause RMA issues if you replaced it with something not EVGA-issue? Could you request a replacement TIM "kit" from EVGA support?
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Re: 3090 FTW3 Thermal Pads 2020/10/20 07:10:17 (permalink)
EVGA_JacobF
They vary in size depending on the location.




Would you happen to know what they all are for people that opened up their cards?
A few of my pads ripped when i changed the paste. (i'd also like to replace the putty stuff.)

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Re: 3090 FTW3 Thermal Pads 2020/10/20 07:45:58 (permalink)
zurvv
EVGA_JacobF
They vary in size depending on the location.




Would you happen to know what they all are for people that opened up their cards?
A few of my pads ripped when i changed the paste. (i'd also like to replace the putty stuff.)




This...and I'd also like to know what putty to use on the putty areas....I want to reapply TIM.
 

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Re: 3090 FTW3 Thermal Pads 2020/10/20 10:19:46 (permalink)
Interested in this as well.

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Re: 3090 FTW3 Thermal Pads 2020/10/20 10:57:44 (permalink) ☼ Best Answerby Cool GTX 2020/10/22 07:48:38
Memory is 2.25mm, VRM 2.85mm, back VRAM is 2mm


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zurvv
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Re: 3090 FTW3 Thermal Pads 2020/10/20 11:22:09 (permalink)
thanks sir.. ugh.. 2.85mm.. no wonder you use putty :)

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Re: 3090 FTW3 Thermal Pads 2020/10/20 13:14:39 (permalink)
Yeah thank you very much for the info.




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Re: 3090 FTW3 Thermal Pads 2020/10/20 14:03:09 (permalink)
hallowen
It is hard to get an accurate measurement of the TIM pad thickness on my EVGA RTX 3090 FTW3 Ultra when I removed the heat sink assembly for the purposes of re-applying the GPU TIM.
The Memory TIM pads are of a very soft consistency and can be broken/stretched or marred when removing if you just try and pull them off.
As shown in the photos, I managed to lift them off with a wooden flat stick, But not without causing damage to the soft putty like TIM.
As far as that super soft putty that was "pasted" between and on the VRM's, I just cleaned all that off with Isopropyl alcohol and used some 1mm TIM strips as a temporary "fix" until I run some VRM temperature checks and compare it to my SECOND FTW3 Ultra that I have not disassembled yet.
The photo of the back of the PCB with the Metal "heat sink" removed shows the memory TIM after I removed it with little damage to them because I did not try and remove them from the chips as I did on the front PCB components.
 
 


Any results to share? Reapplying paste actually help? If so, what TIM did you use?
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Re: 3090 FTW3 Thermal Pads 2020/10/20 15:04:39 (permalink)
For any who are interested, here is a technical presentation on thermal pads.  I found it interesting that you have to hit a correct compression value for them to work.
Daz has a lot of water cooling videos too.
 
https://www.youtube.com/watch?v=efOrQ3U-wzE
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Re: 3090 FTW3 Thermal Pads 2020/10/22 07:55:09 (permalink)
EVGA_JacobF
Memory is 2.25mm, VRM 2.85mm, back VRAM is 2mm



thank you Jacob
 
Does the 3080 FTW3 use the same Pads ?
 
 

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Re: 3090 FTW3 Thermal Pads 2020/10/22 16:08:39 (permalink)
Some pad updates.
Note, i used fuji ultra extreme - which doesn't compress much. So it isn't useful to compare the below info to other more squishy pads (like the ones that came with the card)
 
I replaced the putty and use a .5mm pad. It made contact. (i also put a layer of TIM too.)
For the ram i used a 2mm pad (1.5mm plus a .5mm - there wasn't a fuji  extreme 2mm option)
 
First, ram and the rest of the card pretty well cooled. I never saw the ram hit more than 70C. (with 30min load of timespy extreme with +750.) That is read from the ICX3 sensors. 
The problem is the GPU, it is hotter than it was before (and thus didn't OC was well.) I'm not sure which of the pads is causing the problem (my guess would be the ram)
 
*sigh* those fuji's cost a ton. I'll most likekly have to replace it was a 2mm pad that has more give. I have some TG pads around.
 
I also put TG pads on the back of the card on the ram. 2mm is right.
For other parts of the card i needed 2.5mm to make it to the PCB. (i put pads on the back side of the VRMs)
 
(for TIM on the GPU i used TG Kryonaut Extreme)
 
 
--- 
UPDATED:
I replaced the fuji ultra extreme with TG pads (which compress better.)
My size suggestions for replacing pads with using TG
 
2mm for ram, .5mm for putty replacement, 2mm for ram on the back. 2.5mm for PCB to back.
post edited by zurvv - 2020/10/22 18:03:09

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vlcapata
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Re: 3090 FTW3 Thermal Pads 2020/12/04 07:03:29 (permalink)
Any more updates to this? I'm looking to reapply my TIM but don't want to mess the pads up and not have anything to replace them with!
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Re: 3090 FTW3 Thermal Pads 2020/12/04 07:13:31 (permalink)
vlcapata
Any more updates to this? I'm looking to reapply my TIM but don't want to mess the pads up and not have anything to replace them with!


This is the direct quote from Jacob at evga
Memory is 2.25mm, VRM 2.85mm, back VRAM is 2mm




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Re: 3090 FTW3 Thermal Pads 2020/12/04 07:50:57 (permalink)
I got that thank you.... I was meaning temp wise did it help at all? I should have been more clear on the question.
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Re: 3090 FTW3 Thermal Pads 2020/12/04 08:00:18 (permalink)
So Speaking for 3080 ftw3 which Evga cheaped out on pads. There is a guy which used 3mm gelid extreme and saw up to 7C drops
 
Is back side of PCB is 2mm or 2.5mm
 
""For other parts of the card i needed 2.5mm to make it to the PCB. (i put pads on the back side of the VRMs)""
 
this indicated its 2.5mm. 

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Re: 3090 FTW3 Thermal Pads 2020/12/04 08:25:15 (permalink)
Dang... all I can get today is 6W/mk stuff... but I do have the optimus block and back plate coming... so debating on trying with the pads I got or just waiting another 2-3 weeks or more
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Re: 3090 FTW3 Thermal Pads 2020/12/05 00:34:01 (permalink)
Pads are good if you don’t want a mess, but less is more for thermals.
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Re: 3090 FTW3 Thermal Pads 2020/12/05 11:00:01 (permalink)
Hey I have a question.
 
I just want to remove backplate and apply some pads. The screws holding backplate also holds the main cooler /heatsink. Lets say i put the card face down and gently removed backplate, do cooler jiggle or come off ? I dont want to screw up original puddy and pads on VRAM and VRM

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Re: 3090 FTW3 Thermal Pads 2020/12/06 06:08:26 (permalink)
You do not need to remove the cooler screws. There is one hidden under a sticker, and 3 with a nut on them. 1 of those 3 is a pain to get the nut started on though. I used some precision tweezers to hold that nut in place, while spinning the screw. Also, my sloppy measurement showed 2mm thick ram pads on the rear, but I could have been off.
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Re: 3090 FTW3 Thermal Pads 2020/12/06 12:11:26 (permalink)
Best bet is 2.5mm with good squeeze force. Thanks for your input. This mod is much NEEDED for VRM area cooling.
 
IF you seek top core overclock.

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Re: 3090 FTW3 Thermal Pads 2020/12/06 13:39:39 (permalink)
Back of the PCB is 3mm needed. I used 3mm Gelid Extreme

I just don’t think you’ll get good compression with 2.5... for the VRM areas


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Re: 3090 FTW3 Thermal Pads 2020/12/06 18:43:49 (permalink)
zurvv
Some pad updates.
Note, i used fuji ultra extreme - which doesn't compress much. So it isn't useful to compare the below info to other more squishy pads (like the ones that came with the card)
 
I replaced the putty and use a .5mm pad. It made contact. (i also put a layer of TIM too.)
For the ram i used a 2mm pad (1.5mm plus a .5mm - there wasn't a fuji  extreme 2mm option)
 
First, ram and the rest of the card pretty well cooled. I never saw the ram hit more than 70C. (with 30min load of timespy extreme with +750.) That is read from the ICX3 sensors. 
The problem is the GPU, it is hotter than it was before (and thus didn't OC was well.) I'm not sure which of the pads is causing the problem (my guess would be the ram)
 
*sigh* those fuji's cost a ton. I'll most likekly have to replace it was a 2mm pad that has more give. I have some TG pads around.
 
I also put TG pads on the back of the card on the ram. 2mm is right.
For other parts of the card i needed 2.5mm to make it to the PCB. (i put pads on the back side of the VRMs)
 
(for TIM on the GPU i used TG Kryonaut Extreme)
 
 
--- 
UPDATED:
I replaced the fuji ultra extreme with TG pads (which compress better.)
My size suggestions for replacing pads with using TG
 
2mm for ram, .5mm for putty replacement, 2mm for ram on the back. 2.5mm for PCB to back.




i am about to do 2 new builds.. one is with the xc3 ultra with the EK waterblock, the other is with my KP.  Do you suggest fuji pads??  i oknow i need a bunch, some came with the waterblock but id rather use really good one
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Re: 3090 FTW3 Thermal Pads 2020/12/10 19:19:43 (permalink)
confused for the backside vram
we should use 2mm like jacobf written or  3mm like seandude05 written
 

 
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Re: 3090 FTW3 Thermal Pads 2020/12/10 22:28:57 (permalink)
Just saying, the PCBs are similar, backplates are similar, and on my 3080 FTW3, I had to use 3mm pads to properly fill the gap.

To clarify, on the memory, you probably need to use 2.5, but the rest of the surface area needs 3mm.
post edited by SeanDude05 - 2020/12/10 22:31:24


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