Good stuff, hope everything arrives pristine and in a timely fashion.
Most things will be the same as building a s939 system. However, don't worry that there are no pins on the CPU - its all normal
As for the RAM, you will want to go into the BIOS and set these setting: DRAM Voltage 1.65V (in the "MB Intellingent Tweaker M.I.T" page), Memory Timings 9-9-9-24(CAS-TRCD-TRP-TRAS) (in the "Advanced DRAM Features" page which is found through the "M.I.T" page) and memory frequency to 1600MHz - by varying the system memory multiplier (on the "Advanced DRAM Features" page again)