I'm using a Msi P67A-C45 Motherboard, when i enter the BIOS it doesnt let me select a higher overclock than 4,2GHz.. I can choose everything from 17-42 but not a step higher, can anyone tell me what to do or if i just need to get a new motherboard? I just blew my money on an overkill cpu fan and I would love to be able to use it at its highest capacity..