3090 Hot memory modules

[Notorious XOC]

I am usually just a lurker, but I haven't found anything on this topic.

I was going over some of the 3090 PCB photo and was wondering. Is a backplate sufficient enough cooling for the rear memory modules over the 3090 cards? would anyone have temps of these rear modules while the cards running? what would the long term effects look like if it isn't?

[Skiiwee29]

https://www.igorslab.de/en/gddr6x-am-limit-ueber-100-grad-bei-der-geforce-rtx-3080-fe-im-chip-gemessen-2/

[Hairless Monkey]

And the GamersNexus' article that sums it up.

 

https://www.gamersnexus.net/news-pc/3620-hw-news-amd-ryzen-c-3000-cpus-gddr6x-thermals-amazon-luna

[Notorious XOC]

I read the one from igorslab. And that is what kind prompted this post. They only make mention of the 3080s modules which is on the gpu die side right with the large heat sink? So I am wondering on the 3090 is a backplate really gonna help for the backside modules or should it have some heatpipes?

[xg32]

2 hours ago, Notorious XOC said:

I read the one from igorslab. And that is what kind prompted this post. They only make mention of the 3080s modules which is on the gpu die side right with the large heat sink? So I am wondering on the 3090 is a backplate really gonna help for the backside modules or should it have some heatpipes?

the early leaks mentioned 95C on an open bench for the back modules, which is the main reason i'm not getting the FE, GN should have a video out soon on the temps of different models.

[m9x3mos]

2 hours ago, xg32 said:

the early leaks mentioned 95C on an open bench for the back modules, which is the main reason i'm not getting the FE, GN should have a video out soon on the temps of different models.

Igor also tested the 3080 which only has memory chips in the from of the card not that man if I'm not mistaken. 

[xpresive]

PCB of FE RTX3000 series is so small and tightly crammed, no wonder memory modules are heating so much.

[Notorious XOC]

i might avoid the FE model of the 3090 then whenever they become easily available in a few months (i can use the vram for rendering). the heat has me nervous cause i do need it to be stable.

[dilpickle]

It sounds like this only affects overclocking?

[Goghor]

7 hours ago, dilpickle said:

It sounds like this only affects overclocking?

And prone to the infamous RTX Space Invaders.

[norbert-the-great]

I've found the best solution to this is to apply heatsinks to the backplate and aim a fan at them. Here's how to do it:

http://www.norbert-the-great.com/index.php?entry=Solved:-RTX-3090-VRAM-Overheating

[GoldN]

TRY THIS FIRST - before all the other options of replacing thermal pads and adding heatsinks, etc.  My 3090 under load seemed just fine when you looked at the GPU temp, sitting in the 50-60c range.  Then I decided to open up GPU-Z and look at the Memory Temp on the card and I was shocked to see it spiking to 108c and staying in the high 90's on average.  I was about to tear into the card and check out those thermal pads when something came to me.  My fan profiles are all running off of GPU temp not on the Memory temp.  I went and set my GPU fans to a manual 75% static and all of my temps came down 15c.  So i simply made a profile for gaming that i just click and set and game away with no problems.. then for normal computing i just go back to the 30% curve.  No issues anymore.