Gigabyte GA-EP45-DS3P Review

Hi, I have the GA-EP45C-DS3 (the only difference between models is 2x pci-e slots not 3 and no e-sata bracket. I would like to ask if you had any overclocking difficulties with this board when using traditional methods (not CIA). I have this motherboard with 2gb corsoir dominator 1066mhz, radeon 4870, e8400 (no i'm not using a stock fan) and coolermaster power supply (650W). I can just about get the processor to 4.14 with 9 x 460 with the voltage at 1.41, however the only way I can do this without the motherboard resetting the BIOS settings is by keeping a low (1.3~) voltage to start with and increase the FSB slowly and then increase the voltage when I have reached 460, although the method works when I try and boot up from cold, the settings reset. If you encountered any problems like this or have any ideas as to what my problem might be, I would love to hear them.
Regards, Matt.