Wow, thats a bigger task than you might think! The explaining I mean!.
First off. Do you know what the fsb is? How its differant to the 533mhz fsb your cpu has, mem frequencys, agp and pci frequency, the voltage etc.
Your comps basic fsb is 133mhz. Multiplied by 4 to get 533.
That 533mhz is your cpu bus.
The 133mhz fsb will also be multiplied by 18 to get 2400mhz.
That 133mhz is also related to the mem and agp/pci ports.
133mhz / 4 = 33mhz pci
133mhz / 2 = 66mhz agp then of course you can get agp x4 etc.
Then there is the ram. ddr333.
Everything runs at the fsb then is alterred.
ie. fsb
ci 4:1
fsb:agp 2:1
fsb:ram 4:5
so fsb =133 ram = (133/4)x5 = 166mhz mem speed
So your system has
fsb = 133mhz
cpu bus = 133x4 533mhz
cpu speed = 133x18 2400mhz
pci = fsb/4 33.3mhz
agp = pcix2 66.6mhz (agp is pci x 2 only)
To overclock you can just up the fsb. Change the 133 number and all the rest will follow. Including the cpu speed.
The thing is, after a while the pci and agp ports are running so fast they are unstable. Its usually the ports which go unstable first. Then ram then the Pentium. But this might be different for you.
So you will have to chabge the fsb
ci ratio.
To do this you will need to use your jumpers on the board.
See how this helps ya. Best thing to do is to ask lotsa questions. The Asus boards are good for not frying your stuff so thats a + also.
ps. Whilst looking for your baodrs spec I found that it can , though not officially, supports ddr400 but it also only supports a 2.2ghz cpu.
Its seems quite a versatile board. Im gonna have to read more about these sis chipsets. Im an Intel guy through n though you see