used Intel Pentium 4 cpu 640 1.3.2GHz 800MHz 2MB LGA775 2. Used CPU.100% test 3. lga775 cpu 4. Original brand Pentium 4 CPU 1P4 (520)samtech ... 1M,800MHz,775pin,90nm)5P4 (540)(3.2GHz 1M,800MHz,775pin,90nm)6P4 (541)(3.2GHz 1M,800MHz,775pin,90nm)7P4 (550)samtech.net ... ,775pin,65nm)12P4 (640)samtech.net.cn(3.2GHz 2M,800MHz,775pin,90nm)13P4 (641)(3.2GHz 2M,800MHz,775pin,65nm)14P4 (650)samtech ...