EVGA 3090 HYBRID High "hotspot" sensor. (2024)

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2022/06/28 11:39:02 (permalink)

So i just put a waterblock on my gpu from ekwb and it has a backplate but it is just passive not active and when i got it all working i was playing a game to test it (hunt showdown) and was watching my temps and everything wasnt going over 70C but like 15 min in my monitors went black like i unplugged them but i was able to hear the game still. so i had to restart my pc to get it back and when i went to the program "gpu-z" and saw the temps, the hotspot temp was at 104c but it would continue to play like that for like 10 min before it would crash. and i asked my friend who has a 3090 as well and it has a ek block on it to, he is getting 110c on the hotspot temp and he isnt crashing at all.
so i went to test it on cod modern warfare and see if it is different and the graphics crashed after like 2 min of opening the game. i didnt even get passed the mode selection (where you can select campaign, warzone and multiplayer) and it crashed. not sure if it could be a power issue because i have extension cables for my pcie power since they are colored. Maybe they are a defected??

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104c to 110c on gpu hotspot is too hot. It should be no higher than 93c for a 3090. Sounds like your gpu is shutting itself down to prevent damage which is what it’s suppose to do.

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Do you have decent airflow on the back side of the card?

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Bad mount. Simple as that. Usually a corner of the die doesn't have any/enough paste.

Also though, check the pads on the VRM. The hotspot temp includes the VRM. That's usually not the problem, but at least possible.

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Sajin
104c to 110c on gpu hotspot is too hot. It should be no higher than 93c for a 3090. Sounds like your gpu is shutting itself down to prevent damage which is what it’s suppose to do.

that what i was thinking but what about my friends gpu that is at 110 and he is fine?

post edited by Kushapsu - 2022/06/28 14:50:51

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talon951
Bad mount. Simple as that. Usually a corner of the die doesn't have any/enough paste.

Also though, check the pads on the VRM. The hotspot temp includes the VRM. That's usually not the problem, but at least possible.

so it has to have paste on every spot of the dye? like just the corners not having any is normal on cpus and they are fine.

post edited by Kushapsu - 2022/06/28 14:50:24

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RogueMaster
Do you have decent airflow on the back side of the card?
No but there is about 2 to 3 inches of space between the back and the motherboard. it is a vertical mount

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Kushapsu

talon951
Bad mount. Simple as that. Usually a corner of the die doesn't have any/enough paste.

Also though, check the pads on the VRM. The hotspot temp includes the VRM. That's usually not the problem, but at least possible.

so it has to have paste on every spot of the dye? like just the corners not having any is normal on cpus and they are fine.

Probably not every tiny bit, but it doesn't take a very big area from what I've seen when people posted pics of the paste spread. It's definitely a bad mount. A good mount will result in no more than a 15C delta between the core temp and hotspot. Most of the time the delta is 12C or less.

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What are the odds of it being a bad riser cable?

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talon951

Kushapsu

talon951
Bad mount. Simple as that. Usually a corner of the die doesn't have any/enough paste.

Also though, check the pads on the VRM. The hotspot temp includes the VRM. That's usually not the problem, but at least possible.

so it has to have paste on every spot of the dye? like just the corners not having any is normal on cpus and they are fine.

Probably not every tiny bit, but it doesn't take a very big area from what I've seen when people posted pics of the paste spread. It's definitely a bad mount. A good mount will result in no more than a 15C delta between the core temp and hotspot. Most of the time the delta is 12C or less.

yah that is what i have been seeing online. i am going to disassemble and see whats going on in the card

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yes you had me at 70C and water block, something is wrong , even the HC blocks which are not great performers get nowhere near 70c , Running Timespy stress test and Cinebench r23 at the same time, with GPU and CPU overclocked , I might get to 54 C on the GPU , and the Hot spot is usually wthin 12-16c of this,

post edited by kraade - 2022/06/28 16:18:10

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Kushapsu

talon951
Bad mount. Simple as that. Usually a corner of the die doesn't have any/enough paste.

Also though, check the pads on the VRM. The hotspot temp includes the VRM. That's usually not the problem, but at least possible.

so it has to have paste on every spot of the dye?

Yes

like just the corners not having any is normal on cpus and they are fine.

A CPU has a metal integrated heat spreader (IHS) which touches the full die with all corners of the silicon touching the IHS. Then, if you don't have paste touching to every corner between the heatsink and IHS, not a massive deal because the heat is distributed along the IHS to an area which is touching. But this GPU doesn't have a IHS. You need all the silicon touching the heatsink, otherwise that silicon will get hot and not distribute the heat as well through the silicon.

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i just took it apart. what do you think of this? it doesnt look like im missing anything

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Yep, just like I've seen before. The RH edge of the die in the pic is not covered at all. Looks like it never had any. I assume you did the "dot" method to apply the paste, not spread it? Spreading it on GPUs seems to be the more reliable method. And make sure to evenly tighten the screws down around the die when you put it back together(don't tighten one side completely, then the other), to avoid squeezing the paste to one side or the other.

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Kushapsu
it doesnt look like im missing anything

Look at the giant shiny area of exposed silicon. It was missing things.

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I FIGURED IT OUT. turns out I made a rookie mistake. The thermal pad thickness is specfic with location. i put 2mm where the 1mm is supposed to be and now that i did that my temps are even lower and my hot spot temp is 80c max

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ty_ger07

Kushapsu

talon951
Bad mount. Simple as that. Usually a corner of the die doesn't have any/enough paste.

Also though, check the pads on the VRM. The hotspot temp includes the VRM. That's usually not the problem, but at least possible.

so it has to have paste on every spot of the dye?

Yes

like just the corners not having any is normal on cpus and they are fine.

A CPU has a metal integrated heat spreader (IHS) which touches the full die with all corners of the silicon touching the IHS. Then, if you don't have paste touching to every corner between the heatsink and IHS, not a massive deal because the heat is distributed along the IHS to an area which is touching. But this GPU doesn't have a IHS. You need all the silicon touching the heatsink, otherwise that silicon will get hot and not distribute the heat as well through the silicon.

No I actually spreaded it a little bit and put the block on and took it off to see how much it spreaded and then added a little more and called it good. It's just a small piece. I covered it and it made like a 5 to 10 degree diff on the core temp.

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What do you mean "no"?
Yes.
When you are all done and assembled, the whole thing has to be covered and touching. However you do it, that is the end result necessary. For the reason I explained.

post edited by ty_ger07 - 2022/06/29 02:51:11

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Kushapsu
I FIGURED IT OUT. turns out I made a rookie mistake. The thermal pad thickness is specfic with location. i put 2mm where the 1mm is supposed to be and now that i did that my temps are even lower and my hot spot temp is 80c max

Good deal. Glad you got it sorted. Now that friend of yours with 110C hotspot temps needs to sort theirs too.

post edited by talon951 - 2022/06/29 03:58:31