Hello guys new to the forums here, I have an EVGA GTA460 FTW edition and an aftermarket cooler the "accelero twin turbo III on it, right now its running on 23c while on desktop and I would like to overclock it a little more since I think my gpu can handle it, can you guys help me do the overclock with the EVGA precision? The program is kinda difficult to understand and I don't wanna mess up my gpu with it

Windows 8.1
750W power supply
4gb ddr3 ram
Asus P5p43td pro motherboard