Question 3090 after repaste still having temperature issues

[thomas360mobi]

Hi all,

I recently repadded and repasted my Aorus 3090 Xtreme since it was very loud and the core would nearly reach 90 degrees c in 80+% load, so worried for the longevity, I redid the pads and paste.
I followed a users comment as to which pads to buy and thicknesses.
I used GELID Ultimate 2mm for the backplate, 1.5mm for most of the front and then a few bits of 1mm on the front too. I used TFX paste.

As soon as it was done, the core temps dropped by over 10 degrees. In furmark, they topped at 74 degrees c. Without being too loud.

However, the issue of a hot hotspot still stood (hovers around 105 degrees in load and sometimes above it) which is not desirable, as soon as it goes above 105, the fans go crazy.
Is there a solution to the problem, I imagine I have gone wrong with repasting somewhere? Is it possible I did not use enough paste?

It is worth mentioning that the core temps now creep to the high 70s at full load, which I am not too worried about but that is quite an increase in only a couple of weeks.

Any ideas? Thanks

 

[JohnBonhamsGhost]

you don't mention the case it is housed in,
your overall system-wide cooling setup,
your CPU temperatures at idle and under heavy load,
or the ambient temp in the room where the system is located.

all are large factors regarding temperature range(s).

 

[thomas360mobi]

you don't mention the case it is housed in,
your overall system-wide cooling setup,
your CPU temperatures at idle and under heavy load,
or the ambient temp in the room where the system is located.

all are large factors regarding temperature range(s).

ambient temp is 20 degrees c
I have a lancool 216, included fans at front and rear, 360mm h150i pro up top. cpu will touch 75 at full tilt although that never really happens, basically always below 70.
cpu seems to idle mid 40s, but thats with a couple cores constantly boosting to the mid 4ghz

 

[Phaaze88]

As soon as it was done, the core temps dropped by over 10 degrees. In furmark, they topped at 74 degrees c. Without being too loud.

However, the issue of a hot hotspot still stood (hovers around 105 degrees in load and sometimes above it) which is not desirable, as soon as it goes above 105, the fans go crazy.

How high is the memory junction getting?

 

[thomas360mobi]

How high is the memory junction getting?

Doens't touch 100, mid 90s when under load

 

[Phaaze88]

Doens't touch 100, mid 90s when under load

You're bumping up to the limit, from the looks of things: https://www.micron.com/products/memory/hbm/gddr6x

Is this the same card from this older thread?

Question - Gigabyte Aorus Xtreme 3090 Overheating

Hello, I have a Aorus Xtreme 3090. It gets very loud and very hot in some games - when there is high load. I played Sons of the Forest for about 20 minutes at max settings. Max GPU temperature - 82 degrees C Max Hot Spot temperature - 104 degrees C Max Memory temperature - 86 degrees C Can I...

forums.tomshardware.com

Vram was doing better at that time.

I believe the problem is at the thermal pads, but I couldn't tell you where exactly to start... maybe with a pitchfork towards the person who suggested those pads...

 

[thomas360mobi]

You're bumping up to the limit, from the looks of things: https://www.micron.com/products/memory/hbm/gddr6x

Is this the same card from this older thread?

Question - Gigabyte Aorus Xtreme 3090 Overheating

Hello, I have a Aorus Xtreme 3090. It gets very loud and very hot in some games - when there is high load. I played Sons of the Forest for about 20 minutes at max settings. Max GPU temperature - 82 degrees C Max Hot Spot temperature - 104 degrees C Max Memory temperature - 86 degrees C Can I...

forums.tomshardware.com

Vram was doing better at that time.

I believe the problem is at the thermal pads, but I couldn't tell you where exactly to start... maybe with a pitchfork towards the person who suggested those pads...

Yes, that's the same card.

Funnily enough my memory temps were always quite good before, but my core temps were nearing 90 degrees with an 80% limit and a undervolt (core was higher than memory)

I haven't actually tried it after repadding without the undervolt? Possible afterburner shenanigans screwing it up somehow?
Either way I spent ~£70 on the pads this time which was already quite painful but yeah you're probably right, it's just so difficult to know what to buy etc.
It's worth mentioning it's quiet until it hits the 105 hotspot and then it gets noisy, like I cannot hear it at all if I'm playing a game (open back headphones) unless the fans start going crazy.

I'm really hoping it's something stupid like not enough paste (which was entirely dried up before, with the old pads having leaked oily stuff into the backplate also) but I'm a little scared to disassemble it again

Many thanks

 

[Phaaze88]

I haven't actually tried it after repadding without the undervolt? Possible afterburner shenanigans screwing it up somehow?

You haven't tried what?

By the way: power limit slider better than undervolting. Same goal, but without the trial and error testing that the latter introduces. Neither one can overcome a physical issue though.

It's worth mentioning it's quiet until it hits the 105 hotspot and then it gets noisy...

Right. Hot spot temperature limit is 110C. I got to this conclusion from reading through other Geforce gpu temperature threads.

I'm really hoping it's something stupid like not enough paste (which was entirely dried up before, with the old pads having leaked oily stuff into the backplate also) but I'm a little scared to disassemble it again

If the paste has full die coverage, it should be fine.
If the pads are preventing heatsink to die mating, then paste coverage doesn't matter if there's air gaps in the way.
The oil that leaks from pads happens eventually and is harmless.