ASROCK Z87M OC FORMULA is good...





[Main Setting]
CPU : 5Ghz ( TurnOff HyperThread : 4core / 4 Thread )
Cache : 4.9Ghz
Memory : 1300Mhz 8-12-8-28-1T ( performance mode )

[Voltage Setting]
Vcore 1.38v
Cache : 1.3v
System Agent : +0.3v
Cpu Analog IO : + 0.2v
Cpu Digital IO : + 0.25v
Dram : 1.89v
VTT DDR : 1.01v