660m not boosting?

The 660m on my Y580 is for some reason stuck at 405/800mhz on furmark with the temperature only ever reaching 55C°. I must have accidently messed with a setting or something because earlier it was heating up to 80C°. Does anyone know what might have caused this?

 

okay so i went into device manager and disabled and re-enabled the 660m which brought the memory clock up to 2500mhz and the temperature to 65C°, but the core clock is still stuck at 405mhz

 

I haven't seen my core clock go above 405 MHz either. Is it supposed to? My Memory clock will bump up to 2500 when it's in use, but core doesn't change.

 

Check out lenovo's support forum.. I think someone had the same problem and they solved it

Enviado desde mi GT-N7000 usando Tapatalk 2

 

I found a couple things over there to try, neither of which worked; mostly just unanswered questions.

 

^this. I spent all day trying different solutions from different forums and completely uninstalled/driversweepered and reinstalled my 660m. This managed to get the clock to spool up to 950/2500 mhz, however it still reads 405 mhz on furmark. Any attempt to overclock at all makes it downclock back to 405/800 mhz until I reboot.

 

Also check your setting in lenovo energy management. I noticed that I have to put it on dynamic graphics for any overclock to aply. At high performance it won't go over 835 MHz at all. Maybe you're on a lower setting and it won't let it clock up.