Ahhh yeah I see, jumpers were definitely some time back in terms of overclocking lol.....
about 3/4 of the page down is all the RAM timings you'll ever need to know.....also I suggest you look into AMD64 tweaker....that's more advanced, but once you get really familiar with OC'ing you'll need it for fine tuning your RAM primarily.
That lists the kind of RAM and what IC's the RAM are made up of....BH-5s and BH-6 IC's require good amounts of voltage...easily up to 3.4v but you can get really high clock speeds from it. TCCD memory requires lessor voltage and will generally hit even higher than that of BH-5's....300 (DDR600) isn't that uncommon with the right now how...generally TCCD will do that with 3v and like 2.5-3-3-7 timings.
A very good and thorough AMD64 OC'ing guide there.
That just talks about Brainpower PCB the actual circuit board the RAM is printed on, how to identify it, and why it seemingly is the best PCB for RAM to be one when it comes to OCs
Pretty much the best OC'ing RAM is
OCZ Platinum Rev2s
Some other good overclocking brands are
Both Mushkin and OCZ have "VOLTAGE EXTREME" style RAM out right now that thrive on the high voltages and are basically made for the DFI NF4 boards.
Lots of stuff thrown at ya I know, but basically everything I linked is all you'll need to know to get started becoming familiar with your system.