Amd sempron mutate Help

Hello everyone, first sorry for my English but I am using the google translator.

I have a 140 and a sempron asus motherboard m5a99x, I would like to mute x2 athlon II 440. The bios recognizes my processor but when I start windows 7 freezes. Do not know if that will put him over voltage.

https://lh6.googleusercontent.com/-E...sWUmCQ/cpu.jpg

I put these pictures of the bios if it helps you

https://lh6.googleusercontent.com/-I...0722095231.jpg

https://lh6.googleusercontent.com/-u...0722095255.jpg

https://lh3.googleusercontent.com/-o...0722095308.jpg

https://lh3.googleusercontent.com/-j...0722095322.jpg

If someone could help me I'd appreciate it.

The 2nd core is "weak" or damaged.
Try with default 200MHz cpu bus frequency and see if it run stable ( test with benchmarks that stress the cores ) .