running my new 2500 at 3200(2.21ghz)and for the most part its stable, only crashes while playing Halo, ill get an exception error after 10-15min of playing,

Im using stock cooling and would like to know which is a QUIET hsf out there that can cool this down a lil more, also..

my mem timings are stock on my a7n8x with 2x512 mushkin 2700, there 2.5 3 3 7.

i tried 2.2.2.6 and had to reset my bios to post.

now running it at 2.3.3.7 and ran 3dmark and was stable.

i dont know much about ram, still learning from you all here, ive heard running mem in sync but i dont know how to do this.

any advice?