The 'Western Digital WDC WD5000AAKS-00V0A0 ATA Device' shows up in the motherboard bios, but when I try to install a fresh Windows 7 x64 the hard drive is not listed. Only 1 of the 2 hard drives are shown, Ive tried use drivers from a usb but makes no difference. So I have to install windows on 'Western Digital WDC WD5000AVVS-63H0B1 ATA Device'. When windows has finished installing, both drives are listed & shown & working. So does anyone know how to get both drives to show on the install of windows. Ive tried new sata cables and different sata ports, makes no difference.