FPS problem

Thanks, try taking a look at this.

There is a number of errors listed in the dxiag 

Assinatura do problema:
P1: 1a    Bccode 1A is usually associated with failing ram 

Assinatura do problema:
P1: 3b  Bccode 3B can also be from failing ram 

I would get the ram sticks checked initially

other then that the video driver is 6 months old so would look at updating the driver , but the 1a errors are the concerning ones

Like this ?

can you provide a dxdiag ? per this guide