I have a GA-965G-DS3 motherboard, along with an E6600. Just receiving a Freezer 7 Pro fan this morning, so decided to give overclocking a go. I followed the guide on the DS3 thread, all was going well. But If I try ANY overclock, I think the PC fails to boot, so the motherboard disables the overclock to allow it to start again. I tried 300 (X9 divider) no joy, not even 280. I've tried a few different voltages from 1.45v downwards, but whatever I try, it will not overclock
Anyone help?

Anyone help?