My pc just randomly restarted yesterday for no apparent reason, and after it did, everything worked fine as far as I could tell, but I was concerned about it. So I pulled the the Gigabyte app I had gotten from my their website and attempted to see if the bios needed to be updated. The app offered that option and I decided to try it. Everything seemed to go as planned, it connected to the server and everything, but then it shut down as though to restart to finish the update, but now, when you press the power button on the case, the machine starts up, and you can hear the fans cycle as they normally do when I start it, but it never boots. The monitor shows "No signal" and the fans just cycle fast, then slow, over and over. I've tried holding Shift-F8, then turning it on, and also I have tried holding the Windows key and the B key at the same time as well. Neither of these methods have any effect. At this point I'm thinking something happened on that update attempt that just fried my mobo. Is there anything I can do that will let me boot it? Or do I just need to get a new motherboard at this point?