Here's a classic quad core socket 775 CPU from Intel, which is still popular as an upgrade from a Core 2 Duo or Pentium Dual Core.

This Core 2 Quad runs at 2.4 GHz with 8MB of L2 cache.  It uses a 1066 MHz front side bus and draws 95W of power. 

Please check your system documentation for compatibility.  If you are not sure, ask me.  I would rather tell you no than have both of us waste time with a return over compatibility questions.

You will receive only a CPU as pictured here, but not the exact one.  A good CPU cooler is required but not included with this item. If you need a free tube of thermal paste, just let me know at the time of your payment.

I offer a 30 day return privilege