If you guys wanna overclock on Motherboards that don't support overclocking, then try Clockgen. On my old rig, I overclocked my Athlon II x2 from 2.0 to 2.5.
OS: Win.7 Ult. x64 SP1
CPU: i5-2500k @ 4.19GHz
GPU: 6870 1GB GDDR5
RAM: 8GB DDR3 1600
Dolphin: 3.0-423
CPU: i5-2500k @ 4.19GHz

GPU: 6870 1GB GDDR5

RAM: 8GB DDR3 1600

Dolphin: 3.0-423
