RTX 3080 FE - Backplate Thermal Pad Mod

fromage · 29 Jan 2021 at 18:42

Hi All,

Was wondering if anyone has done the thermal pad mod on the rear of their RTX 3080 FE cards to help with the memory hotspot temps and if so what thickeness pads did you use?

As I was wondering what thickness thermal pads are used elsewhere as they look pretty low quality ones so may as well replace them all while the back plate is off.

Thanks

BS Dave · 29 Jan 2021 at 18:43

The igor mod is 3mm super soft pads, the nvidia ones already on are 1.5 iirc

Check out the instructions for the alphacool block for where they might be useful on the back - that's what i'm gonna do

JohnG7 · 29 Jan 2021 at 19:18

You can get far higher quality pads but they are probably not as soft and they cost £50 per sheet.

Wingz · 29 Jan 2021 at 22:52

Gelid Solutions GP-Extreme 3.0mm is what many are using.

Nvidia added pads to later versions of the FE

JohnG7 · 29 Jan 2021 at 22:58

Pretty sure you can get 17W/mK and even 23W/mK but the later are rare

JohnG7 · 29 Jan 2021 at 23:01

Gelid Solutions GP-Ultimate Thermal 15W/mK but only 0.5mm or 1mm (makes sense).

EDIT: you also can buy it in a long strip for VRam and its is available in 0.5mm, 1mm, 1.5mm & 2mm.

fromage · 30 Jan 2021 at 00:21

I have seen "Thermalright Thermal Pad 12.8 W/mK" but only comes in 1.5mm which can be used to replaced the rest on the back plate but would need some 3mm for the mod, I guess stacking 2 x 1.5mm is a no-no ?

Colonel_Klinck · 11 Mar 2021 at 16:49

Copying this from my post in the Nicehash thread

So I just swapped out the OEM thermal pads on my 3080FE for Thermalright Extreme Odyssey 1.5mm.

OEM pads @ +800 mem fans 75% and 120mm fan on pull next to backplate with 2.5mm Odyssey pads between backplate and PCB. 106-108c

Odyssey pads @ exact same settings 80c after 20 mins :eek:

What trash thermal pads are Nvidia using?? I was expecting maybe 10c but 26c!

Dontrocktheboat · 11 Mar 2021 at 18:53

Colonel_Klinck said:
Copying this from my post in the Nicehash thread

So I just swapped out the OEM thermal pads on my 3080FE for Thermalright Extreme Odyssey 1.5mm.

OEM pads @ +800 mem fans 75% and 120mm fan on pull next to backplate with 2.5mm Odyssey pads between backplate and PCB. 106-108c

Odyssey pads @ exact same settings 80c after 20 mins What trash thermal pads are Nvidia using?? I was expecting maybe 10c but 26c!

I take it this is on the front of the PCB by the core, 3080 has no memory at the rear? good job. This is mining workload temp i guess?

Joxeon · 11 Mar 2021 at 18:58

Got some gelid ultimate 15w/mk arriving in a few days for my ventus which started off ok with junction temps at 94c with a 1000OC but the stock pads have degraded to the point that I even have to underclock the mem to keep it from 110c unless I leave the window open.

chroniclard · 11 Mar 2021 at 19:10

Joxeon said:
Got some gelid ultimate 15w/mk arriving in a few days for my ventus which started off ok with junction temps at 94c with a 1000OC but the stock pads have degraded to the point that I even have to underclock the mem to keep it from 110c unless I leave the window open.

Did you find any UK stock of those?

Colonel_Klinck · 11 Mar 2021 at 19:13

Dontrocktheboat said:
I take it this is on the front of the PCB by the core, 3080 has no memory at the rear? good job. This is mining workload temp i guess?

Yeah on the actual chips themselves.

Joxeon · 11 Mar 2021 at 19:16

chroniclard said:
Did you find any UK stock of those?

Having to buy 1mm and stack them as the original pads are around 2.5mm

chroniclard · 11 Mar 2021 at 19:25

Joxeon said:
Having to buy 1mm and stack them as the original pads are around 2.5mm

Ah, I have used 1.5mm thermaltake on the rear only so far, they have improved it quite well.

May do the front next, ordering more pads.....

Joxeon · 11 Mar 2021 at 19:31

chroniclard said:
Ah, I have used 1.5mm thermaltake on the rear only so far, they have improved it quite well.

May do the front next, ordering more pads.....

From what I've seen online the rear pads make little difference as the ventus already have some so it's like a 4c difference and not really worth bothering with, changing the front pads should give a 30c drop in temps if all goes well.

Which card did you do and did it come with pads already on the rear?

chroniclard · 11 Mar 2021 at 19:56

Joxeon said:
From what I've seen online the rear pads make little difference as the ventus already have some so it's like a 4c difference and not really worth bothering with, changing the front pads should give a 30c drop in temps if all goes well.

Which card did you do and did it come with pads already on the rear?

3080 FE, it has made quite a big difference, the Nvidia pads were potato. Will do front next.

Joxeon · 11 Mar 2021 at 20:01

chroniclard said:
3080 FE, it has made quite a big difference, the Nvidia pads were potato. Will do front next.

Did you add the pads like the Igor mod? I heard that the 3080FEs now come with more pads on the rear but not sure if that's true or not?.

chroniclard · 11 Mar 2021 at 20:07

Joxeon said:
Did you add the pads like the Igor mod? I heard that the 3080FEs now come with more pads on the rear but not sure if that's true or not?.

Yes similar to Igor mod, it had a handful of soft white greasy pads on the rear. They did not look very effective.

Joxeon · 11 Mar 2021 at 20:14

chroniclard said:
Yes similar to Igor mod, it had a handful of soft white greasy pads on the rear. They did not look very effective.

when they go to the expense to build a cooler like the FE has you'd think they wouldn't cheap out on the pads.

Gerard · 11 Mar 2021 at 20:18

Joxeon said:
when they go to the expense to build a cooler like the FE has you'd think they wouldn't cheap out on the pads.

Where there is a penny to be pinched they'll pinch it.