I have a gtx 1660 super which turns off in the middle of doing something. I don't get any output to my monitor and even restarting doesn't solve the problem. It is quite random and very frustrating to say the least. The only solution I have now is to wait for an hour or so and restart - I'll get display output if I'm lucky.
When the gpu stops, the motherboard debug led doesn't light up. The led lights up only when I restart the PC.
Is there any way to check if the issue lies with the motherboard or the gpu without using another graphics card ?
(I dont have integrated graphics either, because I have an i5 10400f)
My motherboard is - MSI B460 M Pro VDH wifi
EDIT: Got a 4 month used rx 6600 for ~ $120 and now this problem no longer happens. it's not a substantial upgrade from my 1660 Super but an upgrade nonetheless.
With those symptoms (dying under load and takes an hour to turn back on) I would put it at a 90% chance this is a thermal issue with the video card. Have you made sure the GPU fans spin when under load? If they aren't spinning that's going to be your problem. If they are, how dirty is the heat sink and has that ever been cleaned? If you have pets and live in a place with carpet or a smoker you will get buildup in the heat sink that can kill airflow. With this card only being ~4 years old at most, I wouldn't expect the thermal paste to be an issue but it wouldn't hurt to replace it.