Replying again. I think i solved this problem. Ran Prime95 for 4 hours, OOCT stress for 8 hours and memtest for a night. Also played NFS Shift for more than 80 minutes and PC was awake for more than 40 hours and STABLE...
I am using ASUS M4A79T Deluxe.
Bios version M4A79T-Deluxe-1005.ROM
Memory fq 1333MHz
Memory voltage 1.8V (1.5 DEF)
NB voltage 1.2V (1.1 DEF)
Memory clock 9-9-9-24-x-31
Memory CR 1T
Disabled all unused functions in bios (qq, express gate, ports etc...)
seems 2 b stable now !
I am using ASUS M4A79T Deluxe.
Bios version M4A79T-Deluxe-1005.ROM
Memory fq 1333MHz
Memory voltage 1.8V (1.5 DEF)
NB voltage 1.2V (1.1 DEF)
Memory clock 9-9-9-24-x-31
Memory CR 1T
Disabled all unused functions in bios (qq, express gate, ports etc...)
seems 2 b stable now !







