@ Raja@ASUS :yep it's working now!  enabled c1e and offset vcore (following your tips on offset vcore oc). i've been running prime95 blend test for 2 hours now thank you!

hello guys,i'm in the middle of searching the best voltage for my 2500k @ 4.5Ghz, then i suddenly realize that my multiplier stuck on 45 even on light load. i've checked the speedstep, and it's on. maybe i've done something wrong?