Unlocking A Phenom II Cpu

[Dimitris Sourailidis]

Hello guys i have an AMD Phenom II x2 550 CPU . Im trying to unlock some of the extra cores.When i unlock the 3rd and the 4rth core the pc doesnt even start i get blue screens,with only the 3rd core enabled the pc starts but the windows theme is becoming to Basic and i get some destroyed icons and the sound doesnt sounds good.I have the asrock n68c-gs FX motherboard .Can i do something to Stable the 3rd core?i've tried some little voltage inrease but its the same..what can i do?
ps:sorry for bad english

 

[delaro]

Those chips are sold as X2 for a reason not all of them are stable enough to run as X3 or X4, I've had 4 and so far only one was fully unlockable and stable as X4. If your motherboard doesn't core unlock automatically then Set Automatic Core Calibration (ACC) to Auto. If that doesn't work, try increasing the Vcore slightly until it boots and is stable. Only go up to 1.4v! If That doesn't work, try increasing the CPU-NB Voltage in steps to a max of 1.35v. You will also need good cooling, stock coolers wont handle the heat these will generate if you manage to unlock one.

 

[Dimitris Sourailidis]

Those chips are sold as X2 for a reason not all of them are stable enough to run as X3 or X4, I've had 4 and so far only one was fully unlockable and stable as X4. If your motherboard doesn't core unlock automatically then Set Automatic Core Calibration (ACC) to Auto. If that doesn't work, try increasing the Vcore slightly until it boots and is stable. Only go up to 1.4v! If That doesn't work, try increasing the CPU-NB Voltage in steps to a max of 1.35v. You will also need good cooling, stock coolers wont handle the heat these will generate if you manage to unlock one.

should i try doing them both?Increasing the vcore and the nb voltage together?i have 32 bit windows does this affect anything?

 

[Wisecracker]

I had a better-than-70% success rate in unlocking.

I suspect your issue is that nVidia motherboard. I've never seen one that was decent at unlocking.

 

[Dimitris Sourailidis]

I had a better-than-70% success rate in unlocking.

I suspect your issue in
s that nVidia motherboard. I've never seen one that was decent at unlocking.

ye thats what i think too.. i cant even overclock over 3.4 ghz..

 

[delaro]

http://lmgtfy.com/?q=Asrock+n68c-gs+Phenom+II+X2+core+unlocking

Look it up, many people have had unlocking success with that hybrid AM2+/AM3 board, overclocking I wouldn't expect much but what do you expect out of a "budget" board using that chipset. Are you running DDR3 1600mhz or DDR3 1333mhz? If your using DDR2 then your O.C headroom will be much lower.