Have upgraded my CPU, 

Selling Intel i5-4590T CPU

 

• FCLGA1150
• # of Cores4
• # of Threads4
• Processor Base Frequency 2.00 GHz
• Max Turbo Frequency 3.00 GHz
• TDP35 W

Was used a normal desktop PC machine with some light gaming, wasn't overclock (dont think you can). Bought it second hand sometime ago.

Asking price 80$ with free Shipping

More info here