Samoz is right it's double data rate 671 x 2 = 1333 roughly. In your bios you should have ram settings or speed settings for Ram 1333 - 1600 - 1886 - 2133 and so on. You must find out what your cpu supports + Motherboard, so if your cpu supports 1600 do not set it any higher. But please please please be careful if you set it wrong you will lock or freeze you Mobo and if you dont know what your doing you will have major problems...ok by creating a new simple volume it now shows up the rest of the hdd as a different drive, dont know if that matters?? i can at least access the rest of the storage.
next question my ram is Corsair 1866mhz 8GB (2 x 4GB) DDR3 Vengeance Memory, when i look at bios my ram shows optimum 1333 mhz, in speccy it states 8gb ddr3 @671mhz (9-9-9-24) is that right?