Before doing any research, I a have question
Is my rig is ok for OCing?
You won't know until you do the research.
But I would say, "Not particularly." Your CPU has a relatively high FSB freq and a relatively low internal multiplier. I don't know about the G43, but the G31/G41 chipsets have a limited FSB range.
How do you know your RAM is running 1:2?
I thing you misread something. CPU stock FSB freq is 333 MHz. Stock RAM frequency is also 333 MHz. Stock RAM clock
is 1333 MHz. If your are running stock freqs, CPU-Z shoud report a 1:1 FSB:RAM ratio.