Upgrade from amd athlon 64 4000+ cpu

[Guest]

I want to upgrade my AMD Athlon 64 4000+ cpu (2.6 ghz) to a dual core higher speed one. What can you recommend.

 

[o1die]

Give us your system specs, especially the motherboard model number or the system model number (dell, etc). Use cpu-z if you have an oem system, and it should list the board chipset.