I am fairly new to this, I was wondering If it was possible to Overclock my Onboard Graphics, I have an "EG41MF-S2H" mobo.
I Overclocked my e5200 to 4.00Ghz no problem and there's 8 fans in my Tower.
no point in ocing onboard graphics (dont even think its possible) as it will still be very weak, you should just buy a mid range gpu (100$) this will give you much more power than any onboard graphics will ever get (in the near future...)
I would be done through M/B BIOS options, unfortunately as far as I know theres no BIOS options available to OC onboard graphics, but maybe your M/B has some BIOS options available, but I seriously doubt it.
Best option for you is add a graphics card, and disable onboard video, the most aggressive thing onboard video is really capable of is DVD playback, if you're attempting any gaming, you need a stand alone GPU.
At least your M/B does have a PCI-E X16 slot for a GPU, which will make all the difference in Graphics performance.
First if all that's not possible...I think and number 2, just buy a Graphics Card! You can buy ANY Graphics card on the market and get more performance that what you will ever get using On-board. you can get a mid range Graphics card from $100-$300.