Hey guys so I have a little problem with my Pc and I don't really know how to and where to start to be able to put my finger on the reason. My pc does this thing where if I leave it on idle for like 15 min or so with nothing running (no video/live or discord ) when I come back the screen is black , the fan?(not sure if it's really the fan that does it) sound like a vacuum and the only way to close it completely is to turn off manually my pc with the power switch (if it works) or I need to unplug it . Now that happen like 3 or 4 time since I bought my pc 3 years ago(prebuilt ... It my first gaming pc don't judge me too much pls). Everytime that happen I wasn't there in front of it so I don't know what really goes on . I tried to force it to happen like letting it on idle for 3 hours , watching videos and such for about an hour or so and then putting it on idle but nothing seems to push it to do it again .My temps usually are around 38c to 44c max depending on the day(been watching them for the last 3 days ...) and the max I have seen is 73c (once ...) Video , temps and built list my temps are for around 15 mins and the only app running was discord... If you guys can help me with tests ideas or such it would be appreciated ! It's my first gaming pc and Im really lost on how to approach it.