Hey all, I just bought myself a new Sapphire Radeon HD 7770 and so far i'm very pleased. I just wanted to see if I could boost the performance a little but every time i try to overclock just a little, the drivers crash during gameplay or stress testing. The stock clocks are at 1150 core and 1250 memory. Any suggestions on what to do? Would upping the power control settings allow me to overclock it? Thanks in advance.