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hi, i have a question related to my gtx 860m. it was working fine and suddenly something happened to it. i am not sure what happened. while gpu is enabled through device manager, it slows down my laptop and cpu starts working on full speed. laptop starts to lags a lot then bsod happens. reboot take longer time then usual. and it makes very hard to use my laptop if i disable my gpu through device manger. laptop works fine like nothing happened to it. no performance issues in cpu, hdd and vice versa. i have already tried many solutions from different websites. like checking drivers and uninstalling it and reinstall and a lot of fixes. also reinstalling windows but still nothing. i hope you guys understand what i am saying. thank you very much

Hi @dizzycheese2234, Your laptop has two fans for cooling. I wonder if the fan that cools the GPU is working or whether it may be clogged with dust etc. Here’s a link to the hardware maintenance manual for the laptop. Scroll to p.53 to view the necessary pre-requisite steps and then the procedure to remove the fan and heat sink assembly, so that the fans can be inspected and cleaned etc. Whilst you have the heat sink assembly removed check the condition of the thermal paste on the GPU and CPU in case it needs to be refreshed. There are plenty of videos on YouTube that show how to refresh the thermal paste on a CPU

Video drivers can be very tricky. After over 35 years in the business this has been the number one problem for all kinds of strange results. To completely uninstall and then reinstall drivers completely something like: Display Driver Uninstaller Download version 18.0.2.1 is required. Why? Because all kinds of files, registry settings, etc. can get subtly corrupted. Normal uninstall, reinstall, etc. can miss some of these. As a matter of fact I just fixed one this morning. I thought the card was defective because of the the yellow exclamation mark and the error messages in the Device Manager. All is sweet now! This is not to say that there is not some other cause but for me 98% of the time it has been the driver (same for touchpads).

I am having the same error. The issue was originally caused on my Lenovo Y50-70, and GTX 860m, because I installed some new drivers trying to get stable diffusion to run better. Instead, now everything is glitching. Nothing seems to run properly, the CPU maxes out and the GPU doesn’t seem to respond or work. OBS for example lags so heavily and crashes and will not encode - just records a blank black or green screen with corrupt meta data. This is true even though I have enabled the gpu in nvidia manager, and also enabled in device manager. I installed the original drivers from Lenovo but didn’t work. I’m angry at myself because my restore points (shadow partitions) didn’t work for some reason, so I couldn’t just roll back.