I have an athlon II X2 245 processor and the emachine has a Sempron 145 processor, I just want to know if I could use my athlon II cpu and replace the sempron 145? It has Nvidia GeForce 6150 SE board if I'm not mistaken. Please help!
You don't need to change a BIOS setting. It will either POST or it won't. It's just a question whether or not your motherboard and BIOS will support a dual core processor. Since you have the Athlon II, just give it a shot. Or open your computer and try to figure out what kind of motherboard you have.