SuperMG3 Posted Thursday at 10:08 AM Share Posted Thursday at 10:08 AM Hello I got an RTX 4080 12GB MXM card. It's kinda useless because it thermal throttles at 83C (91C hotspot) at 150W. Even with some good thermal pads and PTM 7950. Eurocom said the heatsink can support 200W of heat (what a joke). I tried to use MSI afterburner with Nvidia 528.49 drivers, I can limit the power limit but... It also decreases the thermal limit... 81C thermal throttle at 130W (85%) 75C thermal throttle at 110W (70%) I tried to lower the clocks a lot but this didn't help either, I get stutters from thermal throttling in 3dmark benchmarks. Isn't there a way to make the GPU run at 110-115W with a 83C or 85C thermal limit? The VBIOS is also uploaded on techpowerup as X-VSION RTX 4080 12GB. The VBIOS has some weird base clock speed for a 150W card... Link to comment Share on other sites More sharing options...
Maro97 Posted Thursday at 11:11 AM Share Posted Thursday at 11:11 AM What is the laptop model on which you tested the RTX 4080? Link to comment Share on other sites More sharing options...
SuperMG3 Posted Thursday at 11:14 AM Author Share Posted Thursday at 11:14 AM 2 minutes ago, Maro97 said: What is the laptop model on which you tested the RTX 4080? Clevo P570WM Link to comment Share on other sites More sharing options...
Maro97 Posted Thursday at 11:16 AM Share Posted Thursday at 11:16 AM I thought you test it with p870 Link to comment Share on other sites More sharing options...
SuperMG3 Posted Thursday at 11:18 AM Author Share Posted Thursday at 11:18 AM 1 minute ago, Maro97 said: I thought you test it with p870 Bad laptop and it has non standard MXM power delivery. I need someone to help me with the thermal throttling Link to comment Share on other sites More sharing options...
Maro97 Posted Thursday at 11:21 AM Share Posted Thursday at 11:21 AM Eurocom says the laptop heatsink support 100w heatsink not 200w you need a modded heatsink Link to comment Share on other sites More sharing options...
Maro97 Posted Thursday at 11:23 AM Share Posted Thursday at 11:23 AM Link to comment Share on other sites More sharing options...
SuperMG3 Posted Thursday at 11:34 AM Author Share Posted Thursday at 11:34 AM 14 minutes ago, Maro97 said: Eurocom says the laptop heatsink support 100w heatsink not 200w you need a modded heatsink I got an email from them, they told me 200W... Still, I limit the power but I still get thermal throttling. The heatsink can handle my P5200 110W very well Link to comment Share on other sites More sharing options...
Maro97 Posted Thursday at 11:42 AM Share Posted Thursday at 11:42 AM 10 watts is a very small increase for a heatsink designed to handle 100 watts. Link to comment Share on other sites More sharing options...
Maro97 Posted Thursday at 11:43 AM Share Posted Thursday at 11:43 AM Anyway use a liquid metal on gpu core Link to comment Share on other sites More sharing options...
SuperMG3 Posted Thursday at 11:50 AM Author Share Posted Thursday at 11:50 AM 5 minutes ago, Maro97 said: Anyway use a liquid metal on gpu core Do you know a way to counter MSI Afterburner's power limit and thermal limit synchronization? Like when I drop the power limit to 70%, the thermal limits drops by 8C, so no headroom as anticipated... I wanna drop the power limit to 70% and keep the stock thermal limit to 83C (and not 75C) Link to comment Share on other sites More sharing options...
Maro97 Posted Thursday at 11:52 AM Share Posted Thursday at 11:52 AM Use nvidia driver 528.24 the tdp pwr limit slider will activate Link to comment Share on other sites More sharing options...
Maro97 Posted Thursday at 11:54 AM Share Posted Thursday at 11:54 AM If not working use a nvidia inspector with this driver Link to comment Share on other sites More sharing options...
SuperMG3 Posted Thursday at 11:57 AM Author Share Posted Thursday at 11:57 AM Eurocom's played with the words. Now they say 200W is only for the power delivery haha Link to comment Share on other sites More sharing options...
Maro97 Posted Thursday at 11:57 AM Share Posted Thursday at 11:57 AM If all not working use a liquid metal on gpu with 528.24 driver and use the tdp pwr limit slider too Link to comment Share on other sites More sharing options...
SuperMG3 Posted Thursday at 11:58 AM Author Share Posted Thursday at 11:58 AM 5 minutes ago, Maro97 said: Use nvidia driver 528.24 the tdp pwr limit slider will activate Did you read my my post? I did use it. If I didn't use that driver, how am I gonna change power limits? The only thing I can't change is the thermal limit, it's grayed and no values. Link to comment Share on other sites More sharing options...
Maro97 Posted Thursday at 12:02 PM Share Posted Thursday at 12:02 PM The company wasn’t wrong in what it said — the only device that has a GPU heatsink capable of handling power limits reaching up to 400W is the P870TM Link to comment Share on other sites More sharing options...
Maro97 Posted Thursday at 12:05 PM Share Posted Thursday at 12:05 PM You can’t change the thermal limit cuz of the vbios Link to comment Share on other sites More sharing options...
SuperMG3 Posted Thursday at 12:06 PM Author Share Posted Thursday at 12:06 PM 2 minutes ago, Maro97 said: The company wasn’t wrong in what it said — the only device that has a GPU heatsink capable of handling power limits reaching up to 400W is the P870TM For my model, that's kinda stupid to make the slot use up to 200W but only having a 100W heatsink 😕 You sure Liquid metal is better than PTM 7950? Won't it harm the chip? Any protection to add? Link to comment Share on other sites More sharing options...
Maro97 Posted Thursday at 12:09 PM Share Posted Thursday at 12:09 PM Yes I’m sure .. But with thermal pads of the right size Link to comment Share on other sites More sharing options...
SuperMG3 Posted Thursday at 12:10 PM Author Share Posted Thursday at 12:10 PM I don't know. My PTM 7950 is a 20mm thick one instead of the 25mm one. I saw some tests with liquid metal and there are no gains. Link to comment Share on other sites More sharing options...
Maro97 Posted Thursday at 12:14 PM Share Posted Thursday at 12:14 PM The gape between the gpu core and the center of heatsink must be zero Link to comment Share on other sites More sharing options...
Maro97 Posted Thursday at 12:21 PM Share Posted Thursday at 12:21 PM Do exactly what’s shown in this video and don’t rely on visual estimation only. Use a measuring tool to measure the thickness of the thermal pads. I know you have experience, but follow this method anyway — I also relied on experience and just looking, but when I applied what’s in this video, I got results I didn’t expect. It significantly reduced temperatures, with a difference of more than 10 degrees between the hotspot and GPU temperature. Link to comment Share on other sites More sharing options...
Maro97 Posted Thursday at 12:24 PM Share Posted Thursday at 12:24 PM And use these thermal pads because they’re the best in terms of value for money https://a.co/d/ahnxUqT Link to comment Share on other sites More sharing options...
Maro97 Posted Thursday at 12:27 PM Share Posted Thursday at 12:27 PM This is the only way to reduce the thermal in your case Link to comment Share on other sites More sharing options...
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