why on this build http://pcpartpicker.com/p/W2QmQ7 at the bottom it says "Some AMD A78 chipset motherboards may need a BIOS update prior to using Kaveri CPUs."
For $5 more, you can get a 1TB WD Caviar Green, much better than a cheap 500Gb Toshiba Hdd.
http://pcpartpicker.com/part/western-digital-internal-hard-drive-wd10ezrx
Also runs at lower speeds which means it will perform worse, but okay.
Caviar Green: Twice storage, more energy efficient and will perform worse.
Toshiba: Half the storage and will perform better.