3070 running hotter after Thermal Pads Change

[JackSn124]

Hello guys .

So at the moment I'm lucky that I have 2 3070s 1: 3070 gigabyte vision that I use to play and another 3070 gigabyte 3070 oc that I mine and sometimes for  renders and stuff.

I decided to change the thermal pads for the gaming oc but when I plug it back the temps were soo high I couldn't even start any GPU program because the temps were at 80 and the fans at 100% I ended up placing the old thermal pads but one but it's the same deal same temps and fan speeds.

Also on the other 3070 I just opened it to see if the pads were in good condition as well,  plug it back and same deal , i didnt change the pads.

Any suggestions on why both cards are now running extremely hotter than before

 

[OfficialTechSpace]

They probably aren't making good contact anymore.

 

If both cards were fine until you disassembled them, that's user error.

 

Why take apart something that's working fine?

[IkeaGnome]

Did you tighten the cooler screws evenly or did you start from one side of the board and go to the other? This could be causing uneven pressure.

Did you over tighten the cooler screws?

[Moonzy]

Different Thermal pad thickness??

 

I changed my gigabyte 3090 pads and core temp didn't change much, I measured and used the right thickness

[JackSn124]

2 hours ago, OfficialTechSpace said:

They probably aren't making good contact anymore.

 

If both cards were fine until you disassembled them, that's user error.

 

Why take apart something that's working fine?

Yup its all my fault. I read and articule that if i was mining i had to change the pads every 3 months so thats what i tried to do.

On the gaming oc its showing that the hotspot is above 86°C maybe I need to reapply thermal paste on the cpu? 

[JackSn124]

2 hours ago, Moonzy said:

Different Thermal pad thickness??

 

I changed my gigabyte 3090 pads and core temp didn't change much, I measured and used the right thickness

I'm using .5 mm as they all appear to be the same thickness .

[JackSn124]

2 hours ago, IkeaGnome said:

Did you tighten the cooler screws evenly or did you start from one side of the board and go to the other? This could be causing uneven pressure.

Did you over tighten the cooler screws?

Yeah I do tighten the cooler screws evenly maybe I'm over tightening them? 

[JackSn124]

Update 2:

The gpu that i didnt changed the old thermal pads (3070 Vision ) its running ok again.

The gaming oc  the one that i changed all the pads its still bad.

Tried a couple  with 2 old  thermal pads that it had before  and the tems were great but when under load the hot spot  went from  (70 before) to  100c and the falso also are at 100%(they were from 40-60 underload).

Maybe the thermal pads that i purchased are  like  bad for this gpu ?

[Moonzy]

2 hours ago, JackSn124 said:

if i was mining i had to change the pads every 3 months

what kinda lie have u bought into?

this is harmful misinformation at best

 

2 hours ago, JackSn124 said:

I'm using .5 mm as they all appear to be the same thickness .

hmm... my 3090 gigabyte gaming OC uses 1.5mm on the VRAM, and some 1.5mm and some 3mm pads

but VRAM all share the same thickness

 

1 hour ago, JackSn124 said:

Maybe the thermal pads that i purchased are  like  bad for this gpu ?

im suspecting the pads are too thick or something, causing the die to not get enough pressure

but 0.5mm pad is as thin as it gets(?)

hows the thermal paste spread?

[Falkentyne]

5 hours ago, JackSn124 said:

Hello guys .

So at the moment I'm lucky that I have 2 3070s 1: 3070 gigabyte vision that I use to play and another 3070 gigabyte 3070 oc that I mine and sometimes for  renders and stuff.

I decided to change the thermal pads for the gaming oc but when I plug it back the temps were soo high I couldn't even start any GPU program because the temps were at 80 and the fans at 100% I ended up placing the old thermal pads but one but it's the same deal same temps and fan speeds.

Also on the other 3070 I just opened it to see if the pads were in good condition as well,  plug it back and same deal , i didnt change the pads.

Any suggestions on why both cards are now running extremely hotter than before

 

If your thermal paste job was done properly, this is always one of two problems only:

 

1) Using thermal pads that are too thick (not the correct dimensions relative to the stock pads).

2) Using thermal pads that are the correct thickness (equal to the stock pads) but are too hard (too high of a SHORE rating), preventing them from compressing enough to insure correct heatsink to GPU core contact pressure.

 

For cards without hot VRAM: Arctic (blue) 6 w/mk thermal pads (0.5mm, 1mm, 1.5mm or 2mm as needed) are soft enough to compress, as long as they are the correct thickness for the section you are padding.

 

For cards with hot VRAM: use Gelid Extreme pads.  Do NOT use Thermalright Odyssey or Gelid Ultimate or Fujiipoly 17 w/mk pads on the GPU Core side!

 

The problem with using "hard" (high shore rating) pads of a thinner thickness than stock pads, rather than correct thickness of a much softer pad, is you run the risk of the pad not making contact at all, with the GPU Core having perfect contact.  That's because the tolerances are VERY small on "Uniplate" pads (GPU and VRAM/VRM cooling on the same block).  For example, a 1.5mm soft pad (Shore 25) compressed down to 1.2mm will make perfect full contact on the VRAM and perfect contact on the GPU Core, while a 1.5mm hard pad (Shore 55) compressed down to 1.4mm still makes perfect VRAM contact but the GPU contact is 0.2mm of extra gap, causing very low PSI pressure and the paste filling too much empty gaps (This is just an example).  But using a 1.0mm hard pad would cause extremely low to no solid contact on the VRAM or VRM's, and thus high memory or VRM temps despite the GPU core running frosty.

 

So to avoid issues like these tolerance problems, you need a compressible soft pad.

Another option is TG-PP10 Thermal Putty, which is great for people who aren't sure what thickness pads to buy.

[JackSn124]

On 5/28/2021 at 11:23 PM, Moonzy said:

what kinda lie have u bought into?

this is harmful misinformation at best

So yeah i was watching a video and a guide for beginners in mining and that's what they said , i full regret doing this , this is bs and i cant get it right , ill not do it again soon.

On 5/28/2021 at 11:23 PM, Moonzy said:

 

hmm... my 3090 gigabyte gaming OC uses 1.5mm on the VRAM, and some 1.5mm and some 3mm pads

but VRAM all share the same thickness

For the VRAM im using 1.5 mm and its actually running cooler (10c cooler) but the CPU seems to be running a lot cooler. I swapped the .5 mm on the memory modules for 1mm and its still the same temps , almost 20c higher than usual under oc and 10c under normal gaming loads(approx 75c which is not bad but not for mining which i use this card for).

On 5/28/2021 at 11:23 PM, Moonzy said:

 

im suspecting the pads are too thick or something, causing the die to not get enough pressure

but 0.5mm pad is as thin as it gets(?)

hows the thermal paste spread?

I replaced the thermal paste yesterday , applied Artic MX-4 wich seemed to help at first but its still the same scenario my last resort is to order 3) 1.5 mm pads for the memory modules but idk this is weird tbh.

Also thanks for the pointers and for the  info :).

[JackSn124]

On 5/29/2021 at 12:14 AM, Falkentyne said:

If your thermal paste job was done properly, this is always one of two problems only:

 

1) Using thermal pads that are too thick (not the correct dimensions relative to the stock pads).

2) Using thermal pads that are the correct thickness (equal to the stock pads) but are too hard (too high of a SHORE rating), preventing them from compressing enough to insure correct heatsink to GPU core contact pressure.

 

For cards without hot VRAM: Arctic (blue) 6 w/mk thermal pads (0.5mm, 1mm, 1.5mm or 2mm as needed) are soft enough to compress, as long as they are the correct thickness for the section you are padding.

 

For cards with hot VRAM: use Gelid Extreme pads.  Do NOT use Thermalright Odyssey or Gelid Ultimate or Fujiipoly 17 w/mk pads on the GPU Core side!

 

The problem with using "hard" (high shore rating) pads of a thinner thickness than stock pads, rather than correct thickness of a much softer pad, is you run the risk of the pad not making contact at all, with the GPU Core having perfect contact.  That's because the tolerances are VERY small on "Uniplate" pads (GPU and VRAM/VRM cooling on the same block).  For example, a 1.5mm soft pad (Shore 25) compressed down to 1.2mm will make perfect full contact on the VRAM and perfect contact on the GPU Core, while a 1.5mm hard pad (Shore 55) compressed down to 1.4mm still makes perfect VRAM contact but the GPU contact is 0.2mm of extra gap, causing very low PSI pressure and the paste filling too much empty gaps (This is just an example).  But using a 1.0mm hard pad would cause extremely low to no solid contact on the VRAM or VRM's, and thus high memory or VRM temps despite the GPU core running frosty.

 

So to avoid issues like these tolerance problems, you need a compressible soft pad.

Another option is TG-PP10 Thermal Putty, which is great for people who aren't sure what thickness pads to buy.

Im going to order those 1.5mm Gelid Extreme pads for the memory modules as you are recommending , also my VRAM is running cooler actually and my problem is the CPU core and the HotSpot which are  crazy right now ! after i replaced the  stock pads and the Core temps are 20-25c over the old  stable temps. thanks for recommending good pads and for all the useful information ill keep this for future reference.

[Falkentyne]

Remember that all cards are different.  You can't use measurements from one AIB card for another AIB card as the heatsink and VRM and VRAM spacing metal posts may be completely different.  Once you know the exact spec of the original pads, swapping them with Gelid Extreme pads is a very wise choice, as Gelid Extremes (not Gelid Ultimates!) are the highest w/mk pads that still have excellent compressibility.  Most other brands that are >12 w/mk range from medium to hard thickness (high shore rating).

 

For 3090 FE users, Gelid Extreme 1.5mm pads are perfect for the core side VRAM and VRM banks.  However you should use Gelid Ultimates on the backplate VRAM because that VRAM Gets so hot that the much softer Extreme pads end up turning into a very sticky putty (this does not affect performance at all), which makes the backplate VERY hard to remove safely without pre-heating the board up first (the core side pads do not have this problem).

 

For 3080 FE, due to different heatsink dimensions, use 2mm Gelid Extremes on the core side.  Someone said that 1.5mm pads don't make proper contact.