Replaced thermal pads/paste on a RTX 3080 Runs hotter now.

[Jejuboy79]

Hello,
Thanks for any help. I'm very new to this so I am looking for ideas. I replaced the pads and took off the plastic on both sides? (good/not good) Then I put on new paste and spread it out. Ran my comp. and it was much hotter than before. So I removed some of the paste from middle and it's still hot. Any ideas would be great. Thanks, Jeju.

 

[timta2]

You should be more specific about what temps you're referring to. GPU? Memory? VRMs? It has to be either your application of the thermal interface material and/or the new pads that you bought aren't as good as the old ones or aren't the proper size.

 

[Jejuboy79]

You should be more specific about what temps you're referring to. GPU? Memory? VRMs? It has to be either your application of the thermal interface material and/or the new pads that you bought aren't as good as the old ones or aren't the proper size.

Ah, I told you I was a newbie. The Vram temp goes to 108c and the fan goes to 100% right away. Doesn't even take a minute to go this hot either. Thanks again.

 

[eidairaman1]

Ah, I told you I was a newbie. The Vram temp goes to 108c and the fan goes to 100% right away. Doesn't even take a minute to go this hot either. Thanks again.

Wrong size pads possibly

 

[Jejuboy79]

Wrong size pads possibly

Like thickness?

 

[sam_86314]

Like thickness?

Yeah. How thick are the pads you used?

I'm looking to upgrade the pads on my 5700 XT, and from what I understand, 2-3mm pads are correct. Might be the case with your card too.

Also, you want the thermal compound to cover the entire die. Any spots that aren't covered will overheat. If you are using a non-electrically conductive compound, it might not hurt to use a little too much just to make sure you have good coverage.

Also also, are you referring to a thin layer of plastic under the backplate? That might be there to keep the surface mount components from shorting out.

 

[Jejuboy79]

Yeah. How thick are the pads you used?

I'm looking to upgrade the pads on my 5700 XT, and from what I understand, 2-3mm pads are correct. Might be the case with your card too.

Also, you want the thermal compound to cover the entire die. Any spots that aren't covered will overheat. If you are using a non-electrically conductive compound, it might not hurt to use a little too much just to make sure you have good coverage.

That's probably it. I ended up getting 1.5 mm so I'll just order some 3.0 and 2.5 just in case. Thanks.

 

[Deleted member 74752]

I have some K5-Pro on hand, but have yet to test it. Supposed to be a replacement for thermal pads.

 

[Jejuboy79]

I have some K5-Pro on hand, but have yet to test it. Supposed to be a replacement for thermal pads.

Do you take the plastic off both sides?

 

[Deleted member 74752]

Do you take the plastic off both sides?

It's a thermal paste/compound. https://www.amazon.com/viscous-ther...9686235&keywords=k5-pro&qid=1643939606&sr=8-2

 

[wolf]

What model card? I'd avoid that thermal compound honestly and go for decent pads, especially since temps got worse.

I've opened up my TUF 3080 to tinker multiple times and just did a friends Gigabyte Gaming OC card with him, happy to try be of assistance.

 

[claes]

That's probably it. I ended up getting 1.5 mm so I'll just order some 3.0 and 2.5 just in case. Thanks.

If you can’t measure the originals yourself I’d contact the manufacturer. Every card is different and often uses differing sizes for various components.

I found this table which may or may not include your card.

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[Jejuboy79]

I got my card in S. Korea but I can measure the thickness.

 

[wolf]

@Jejuboy79 What model is the 3080?

 

[Jejuboy79]

Igame RTX 3080 bought in Feb. when I lived in S. Korea

 

[wolf]

Igame RTX 3080 bought in Feb. when I lived in S. Korea

The pads required are 2mm between the memory chips and cooler, and 3mm between the PCB and backplate, I'd 100% recommend this over the thermal goop. I used thermalright oddessey pads from AliExpress and had a ~20c memory temp drop.

 

[purecain]

I would try to compress the pads you have applied or replace them with thinner ones. Each section of the card can use differant sized pads so check you have the pad thickness correct.

It sounds like your gpu isnt making good contact with the HSF.

 

[ThaiTaffy]

If fitting new pads and I'm unsure as to the thickness, I use copper shims 0.5mm thick and slowly stack them on chips with a tiny tiny bit of paste on top till I make contact with the cooler then note how many shims and replace with pads. As @purecain said above pads can can be of different thicknesses throughout the board and manufactures don't always use the most effective pad thickness so double checking with shims seems more logical to me.

 

[anfazi54]

it depends when u used the thermal in