Check your BIOS Setup, look to see if all your drives are recognized by BIOS.
If your hard drives are missing in BIOS, either the hard drive failed, the hard drive power or ribbon cable came loose, or you have a motherboard failure :sigh:
If your hard drives are missing in BIOS, either the hard drive failed, the hard drive power or ribbon cable came loose, or you have a motherboard failure :sigh: