Need some help with overclocking

Hello everyone! I was wondering if any one has a link or help-me file on CPU overclocking.

I have a foxconn a78ax mb with an AMD phenomx4 9750 with a 9700 zal fan. Ram is some kingston 2x2gb with some large heatsinks. Here is what i do to OC...central control unit in the bios and go to "fox inteligent stepping". I then go to CPU clock adjust and I can only seem to get my CPU up to 2.43 ghz. If i go over that ill get random blue screens. Im pretty sure its somthing im not adjusting but im realy not sure. I know how to adjust things like my memory speed ect... but im not too sure about the timing 5-5-ect.... Any advice or info would be VERY appreciated!

The ram timing section of my bios is very confusing. it says "cas latency 4clk, RAS/CAS delay 7clk, row precharge time 7clk, min active RAS 12 clk, RAS/RAS delay 2 clk, row cycle 17 clk. Does that mean im in 4-7-7-17 timing? There are a ton of options for changing them but im not sure what to change. they should be 5-5-5-18 according to the box. options are- cas latency,RAS-CAS delay, precharge command peroid, internal read to precharge command delay, active-to-active/auto-refresh command peroid, write recovery,active-to-active of a different bank, internalwrite to read command delay, read to right turnaround for data, DQS contention, read to write timing, read to read timing, auto refresh-to-active/auto refresh command prompt. (just put in 1066 ram 2 weeks agao from 800 and was getting blue screens when i put the 1066 set in. Fixed that by lowering the overclock from 2.53 to 2.46. My cpu voltage is set at +25mV 12v defalt and memory voltage is at +50mV.) Not realy looking to get to 3ghz I just need the 2 core apps i have on here not lag so badly with cpu AI. 2.4 ghz isnt what it used to be sadly

ok I tried to change them according to the specs of my ram. I only changed the tCAS-tRCD-tRP-tRAS settings and left the others on auto. However some how my computer wouldent boot after i set them untill the 6th try and it for some reason set the tCAS setting to 6 rather than 5-5-5-15 so tomarow im going to try setting the tCAS to 4 and see if it still says 6-5-5-15. Do i need to do any voltage increases? these are supposed to run at 2.2 v but my mb only show me +50mV settings. It doesnt show me what they are defalt.