FSB = Front-Side Bus.
OC's are derived from modifying (among other things like voltage tweaks etc); a multiplier and a bus speed.
For a Q6600, the stock multi is 9 and the stock FSB is 265 or somthing.
So 9x 265 = 2385MHz, shown typically as 2.4GHz.
For a Q6600, you wouldn't touch the multi.
So any end result would be 9x X = YGhz.
You're increasing the FSB, as per the quote above "FSB tuning from 200MHz up to 800MHz at 1MHz increment "
So, that board would allow you to enter:
9x 800 = 7200MHz / 7.2GHz. Obviously, that's not going to work.
You should be able to enter a FSB in the 350-370 range and 9x350 = 3150MHz ie 3.15GHz & 9x370 = 3330MHz / 3.33GHz
http://www.overclock.net/forum/5-intel-cpus/289573-my-experience-overclocking-q6600-basic-guide-walkthrough.html
For modern, unlocked Intel CPUs , the equivalent (not quite, but similar enough) is the BCLK.
There's a Multi x BCLK, but the Multi is what changes. The BCLK is 100.
So a 44 multi x static BCLK multi of 100 = 4400MHz / 4.4GHz.