bear in mind.. X2 cannot oc high..
did u know in pr rating it's doubled...
2.4ghz equivalent to 4600+ - 4800+
u oced more than u thought... check with sisoft sandra if u got..
ram timming maybe got conflict..

i've tried mine until 2.45g and than stop.. coz using default cooler..
temp around 57~ onload
the max i think it's can goes till 2.6-2.7.. but voltage supply 1.6v like that maybe more which i think is not safe... again temp can reach >70C..

i felt that using dual core @ 2ghz more than enough so running at stock right now..

if u want better cooler search for zalman cnps9500 AM2.. Scythe Mine
atleast can use on s939 and am2... not limited to s939 only.. so if want to move to am2 still can use it..