I just bought the I5 3570k there are smudges and residue on the surface of the CPU which could be from when the CPU was being tested. I want to know if it is worth cleaning. I have some pure alcohol and lint free cloth. I am worried that cleaning would damage the CPU. Does cleaning it produce a lot of static? Are CPUs sensitive to static? I have an anti static wrist band with a crocodile clip at the end of it.