I installed a Gigabyte 8400 gs video card in my computer. I have an Asus M4A78LT-M LE mother board and a 600 watt diablotek power supply with 8 gigs of ram. My hard drive burned up. I thought it was a fluke. I removed the video card and installed another hard drive. About three months later i reinstalled the video card and burned that hard drive. Can anyone tell me what is going on here?