i5 2500k oc issue

[leo6diam]

Hello all, i have i5 2500k cpu and gigabyte z68ud3p b3 motherboard along with 8gb kingston hyperx ram which runs at 1600mhz cl9.im trying the last montht to oc my cpu to 4.5 ghz stable but looks like this chip wont do it.the strange issue is that its super stable at 4.4ghz without even touch anything else in bios except set the multiplier to 44.but when i set it to 45 i get instant blue screen on prime test.with multiplier at 45 i tried everypossible voltage settings,i disabled cpu features as suggested i used llc at every level,i changed vcore many many times i really tried everything to make 4.5 stable but icant!!and as i said at 4.4ghz with everything on auto and by everything i mean everything,it works stable after 8 hours prime testing.so do i have the badest chip on earth or i do something wrong?i use evo 212 v2 cooler.and temperatures are under 70.vcore during full load at 4.4 ghz is 1,33.

 

[popatim]

4.4 is fairly normal from my experiences. you can try fsb to 102 if 4.5 is really bothering you.

 

[frank_hnd]

stay at 4.4Ghz. 100Mhz is not worth the effort/risk for what you get in return.

 

[Zerk2012]

For that chip 4.4 limit is very bad those usually overclock like a champ I had mine to 5.1 just to see what I could do then backed it down to 4.8.