Hi, I have a computer that won't boot into Windows 7 and could do with some advice. Sometimes it gets to the logo screen and restarts, sometimes there's just an error message saying no bootable drive is found. I've tried booting from a dvd, which seems to work so far, so at first I thought it was the hard drive, but there are other problems. The usb keyboard and mouse have the same problem at the hard drive, sometimes they work, sometimes they don't. The power button is also unreliable, sometimes it doesn't shut off the power even after holding for over 5 seconds, sometimes the computer switches off normally, but then seconds later it turns back on again. I've tried clearing the cmos, but the problems persist. It's a core i3 system with a GA-H61M-DS2 motherboard and a 250w power supply. It's worked fine for the first few days after getting it set up. Is it simply a dead board, or is there something that can potentially be done?