Ive also tried the HDD on another system and it works fine. I believe that the motherboard is fine as well because It was recently plugged into my main rig working flawlessly. The only new part is The power supply which is slightly dodgy but could that even cause this sort of error?
Also, if i enter the bios by smashing "Del" before the splash screen locks, there are no HDD's detected.
Also, if i enter the bios by smashing "Del" before the splash screen locks, there are no HDD's detected.