Your old PC tower is sitting in a closet somewhere, all alone and collecting dust. You can bring that CPU up to date by swapping the ancient processor with an Intel Celeron processor. If you want to kick start that old Pentium 2 to a dual core chip, try out the Intel Celeron G530 processor, which offers 2.4 GHz of processing speed. Even if your PC is a dinosaur, you can try upgrading to the Intel Celeron E3400 for a 2.6 GHz boost. With the E3400, you have the same onboard cache of the G530. The Celeron family of processors is not as powerful as Intel's Pentium processors, but they are very affordable, perfect for computer hobbyists who like to build their own machines. eBay's reliable sellers offer processors to suit whatever fossil of a computer you may have. With many convenient shipping options, every computer has a chance to be saved from the lonely closet with an upgrade to the Intel Celeron processor.