Overclock with chipset P35/G31

[GAINELL]

I have a motherboard ASUS P5KPL-AM, a Q6600 processor with the cooled pate ARTIC SILVER 5 Thermal and RAM PC6400 800Mhz. Whether it is safe to overclock to 30% with the motherboard P5KPL-AM?

[GILBERT]

I have a Gigabyte GA-G31M-S2L. I overclock my E2180 processor to 3390 MHz to 2000 MHz is a home.

[GAINELL]

I have not managed to overclock option by checking the bios "Overclock 30%".
What values as you change to overclock to 3 Ghz? when I enabled bios "Overclock 30%", the computer was not turned on. This means that for 3 Ghz, I have to do everything manually. is it possible that my bios does not block the frequency of PCI Express at 100 MHz and without de synchronizing RAM?

[GILBERT]

you can not lock the PCIe to 100 mhz?
your motherboard come from a branded PC or not?
you can not desynchronizing the ram?
your bios is not restrained?

overclock to 3 GHz, I stuck on the 100 PCIe, I desynchronizing 2.66 on my ram instead of 4 and I increased the FSB to 300 mhz