Well, here's the system specs to start off... OS: Windows 7 professional x64 new OS Motherboard: Gigabyte Z68X-UD3H-B3 rev. 1.3 CPU: Intel Core i5-2500K x4 Clocked at 5801 MHz RAM: 16gb Corsair Vengeance 1600MHz Harddisk: Seagate 1TB Serial ATA HD 7200/64MB/SATA-6G VGA: NVIDIA GeForce GTX 560 Ti PSU: Corsair Enthusiast Series TX650 V2 650W 80+ Bronze Cooling: Corsair Air Series A50 Performance CPU Cooler Network: Realtek PCIe GBE Family Controller Audio: Realtek High Definition Audio DirectX 11 Hopefully that's enough. Anyway I built this computer about 3 weeks ago and immediately had BSOD problems and graphics error kernel problems and whatnot. The graphics one I haven't seen in a little while now so hopefully I took care of that. Now I get random shut offs and blue screens. This is the newest error message: The driver detected a controller error on \Device\Harddisk1\DR2. So what I'm wondering is do I have the harddisk in the right Sata port? I thought I did according to the diagram, currently it's in SATA3_0/1 which is supposed to support Intel 6gb/s connectors...but maybe I should have it in the 3gb/s ones? Any help or ideas would be appreciated. P.S. I've also ran memtest 86+ and there weren't any errors from that. Next I'm going to remove 3 of the mem sticks and run a test individually on each of those. Temps look great- under 30C for everything and I have ran a stress test for an hour and they stayed around 60C...Is it weird that Windows gives me a 5.9 rating for the Harddrive?