Hmm.. I discovered IBT(intelburntest) for quick examination and after trying 2 hours I think I found the stable settings (as it says that my system is fully stable after 5 tests - standart and high) but I'm not %100 sure 'cuz I didn't try it with prime.

the settings I changed are;

FSB Termination: 1.36
NB : 1.32
NB GTL : 0.665

btw rest of the settings in that .doc file are useless information for this situation. I wrote down the important ones.