Thank you Aaron for your reply and for sharing your story with me, after reading your post I feel like it might be a similar issue, especially since like you said, the graphics card seems heavy especially compared to my motherboard which is just a very basic MSI micro atx motherboard. A day after I started this thread, I re-installed the graphics card and also used a brand new HDMI cable this time and haven't had the issue since. It's been 5 days since then and so far it starts normally every time whether powering on or waking from sleep as well. So problem solved it seems like, I am not sure if reinserting the graphics card did it, or maybe the HDMI cable did, but so far so good. Thank you again for posting, your reply really helped me a lot. Nice to read that you have a GTX 1060 as well, what a great card it is for sure! The ASRock motherboard sounds really interesting, I might consider using ASRock next if/when I upgrade my current PC.