anandtech's overclocking forum is great too. oh yeah go check out DFI, it is really indepth about memory timing and everything under the sun. if you can't find those links ill get it, im too lazy right now.
anyway, good choice on the parts. i wouldve still went with the dual-core and the thermalright xp90, but still thumbs up.
just as a side note because we're on the topic of overclocking, rumors are there are no more 939 opterons! NO! those fuckers were beasts. average overclock were 600mhz+, most were reaching 2.7-8ish and then there were some reaching over 3.0ghz.
anyway, heres the quick and dirty for the amd64. first of all ALL AMDs are LOCKED except the FX. Meaning, you cannot chance the multipliers up, but you can only lower them to conserve energy (cool n quiet). and also, cool n quiet is not recommend if you tend to overclock. it tends to cause instability, but some have gotten to work.
set your ram divider to the lowest and then slowly up the mhz on fsb or whatever its called on your motherboard. this takes the memory out of the equation. its stock at 200mhz. increase by 5mhz until it fails to boot into windows, this is your max. then decrease by about 10% and get into superpi. run the 1mb test to see if you pass. if you want more mhz, up the voltage to the cpu by the smallest about you can, usually .01v. When you do this, you degrade the longiviity of the CPU and void warranty, but you can get more speed. Try to stay within 1.45ish, anything more is too scary for me because it seems like you have a good cooling solution. Im actually on stock voltage because im a pussy like that.
Next, return your cpu to stock and start jacking up the mhz on the ram. its also stock at 200mhz, assuming you have pc3200. most ram is safe up to 3.0v and warranty is not void. im running 2.8v. bh5 and extreme ram goes pass 3.0v and need like 3.2v. crazy speeds, but crazy hot. up the ram until it fails to boot into windows. go down 10 percent and run superpi 1mb again.
now run the max cpu with the max ram. dont worry if it doesnt match. my max fsb on stock voltage is 267mhz and my ram is stock 200mhz (value ram). so i went to the divider and i chose the 3/4 divider because 267mhz times 3/4 is roughly 200mhz, same as my ram.
now run superpi 1m again. then run memtest to make sure your ram is stable and then run prime95 for 12hrs minimum to make sure your rig is stable.
make sure your HTT is under 2000mhz. the LDT changes this as while as ur fsb. my fsb is 267. 267x2=534. times 2 because amd is 2 instead of 4 like intels. then times by ur LDT. mine is at 4 so it comes out to 2136. oddly, this is stable for mine. most people go down to 3 to keep it under 2000mhz.
this is just a very basic. go read the other forums to get the max of ur system. good luck.
my cpu is 3000+ with a stock multiplier at 9. im running 267mhz with stock voltage. my ram is stock with 2.8v because its value ram that needs more voltage to get good timing at 2.5-3-7-3. im at 2400mhz from 1800mhz. im very happy and do the super pi 1m at 37secs. post ur results =)