So this smell problem occurred 2 days ago. I have a Gigabyte 1080 and have been mining off and on for about 2 months. I don't mine all of the time, but I do when I'm asleep or not playing video games. I use Nicehash to mine and decided to use run ethlargement to get the most out of the gpu while mining. Before doing that my profit was around $1.50-$2.20. After using run ethlargement with daggerhasimoto nbminer I was making $3.20-$3.90. I mined for about 4 hours and this smell started radiating out of the pc, I also have the case open, and it smells like fumes from an old car. I stopped mining and tried mining the next day and would get bsod every single time using run ethlargement. I've been trying to pinpoint the smell and I've smelt it from the gpu, psu and the radiator (i100h Corsair RGB Platinum water cooler). At first I thought it was dust burning so I started to clean all of the dust out. I opened the 1080 and cleaned it as well. I also replaced the thermal paste on it too. I don't know what the temps were before I replaced the thermal paste, but right now it's sitting at 48 celsius. I've made a return request for my psu, but I think it might be the gpu. There isn't any smoke or wires that are messed up as far as I can see. Also the water cooling tubes seem fine and don't appear to have any cracks. It's very strange to me that when I'm sitting at the desk there's a very strong smell, but when I go to pinpoint it then it's very hard to find. I smell it the strongest in one spot, the middle, of the radiator. The psu and the gpu were very slight smells, but they were there. Any help is appreciated!