Oh! And just a thought - this motherboard is a pain in the ass for trying to choose its own overclocking and overvoltage settings when on Auto - you may have seen "Overclocking failed" or "Overvoltage failed" on boot. Go into the BIOS, into Advanced and then jumperfree config, and set the FSB clock, GPU clock and PCIe clock to manual - same with the voltages for the Vcore and CPU-NB. leave the loadline at auto. i also manually set my HT frequency and width, left the voltage on auto. I set the memory clock manually, and the voltage, left the rest on auto.
Then I came out of there, and into CPU configuration. i disabled cool n quiet, and C1E, then set Advanced Clock Calibration to "Per Core". here I unlocked my 4th core - i'm sure its just an on/of setting. and pretty much left the rest auto.
I'd try that and see how stable the overclock is - I suspect the auto settings on the voltage will be the cause of your overclocking woes.
I hope this helps
PS if it fails an overclock first time you try, just reboot it with ctrl alt del, sometimes it goes second shot. don't write off voltage/frequency settings first try with this board.