great info there stew2.....
whilst finding you highest ''stable'' FSB i would loosen the RAM timings right off to 6-6-6-18, this will remove the possibility of your RAM becoming unstable as you raise the FSB on a 1-1 ratio, so it basically allows you to just work on the CPU for now...
i'd leave all other voltages on ''Auto'' for now except ''VCORE & VDIMM''
raising the FSB in increments of 10mhz or 20mhz, keep going till it fails to post, then start adding in more VCORE, if it still fails to post no matter how much extra voltage you feed the CPU, add a little VDIMM (not too much, RAM frys very quickly), but this should allow you a few more increments...
if it stops posting no matter what settings the above voltages are on, this is when the other ''sub'' voltages will come into play....... unfortunately every rig is different so from this point on its a case of trial & error
now its impossible for you to fry the chip, the board has voltage fail safes to prevent damage.
once you've reached your highest FSB (hopefully 4ghz+) this is when you can start to mess around with RAM settings, bring the timings back in to 5-5-5-15, if your able to run CL4 thats even better..but unlikely if its CL5
another setting to look at is the ''command rate'' if your RAM is good stuff it may be able to run ''1T'' timings instead of ''2T'', this will further increase performance, but again only certain RAM can do this...
remember your RAM will be the first component to fail, so treat it with a little more love than anything else....lol

, be ready for at least 40-50 reboots to get it stable, but its all part of the fun...

SK