Your probably making lots of beeping because your not keeping your ram and uncore at the right spec effective ram speed then your qpi/NB has to be x 2 and a little bit ( 400mhz fro me ). ie. your running it at 800mhz so 1600 effective. so your qpi/northbridge should be at least a min 3447 try turning it up 1 or 2 multi.
For example i run my ram at 800mhz effective 1600 so my qpi/NB is at 3600.
when i started oc i7's this was my biggest problem at lower speeds the multi for ram sucks. most c1/c0 will do 3.4 to 3.6 at around 1.25Vcore.jmo
I times my ram by 2 then add 400mhz so if ram speed is effective 1400mhz then Qpi/NB is 3200mhz.
try and lower your voltage.