I want to overclock my AMD FX 6300 to 4.3-4.5 ghz but i do not have uefi and the only guides i can find on youtube are for uefi! I followed a guide and set as many settings as possible to match with the settings in the youtube video and my system ended up crashing someone please help. how can i overclock without the uefi. and if i do 100% need uefi how can i install it without having to fully reinstall windows 7 on my pc! I only have Windows 7 professional with no uefi!