I will repeat after what these guys posted...
Do not increase your voltage at the moment.
You can still raise your frequency a little bit without having to raise voltage.
but you will not be able to increase it by much.
Do not disable this stuff until you get your aftermarket cooler :
Advanced Chipset Features:
sub menu System Clocks
CPU Spread Spectrum: Disabled
sub menu CPU Configuraion
CPU Thermal Control: Disable