Hi all Guru i need help. My Mac Pro 2009 EFI Mod to 5.1 few days ago had a broken Northbridge Plastic rivet and cause the IOH T-Diode shoot to 128'C. Ive mod by replace both plastic pin with screw and nuts and now that's resolved but something else happen. My Booster 2 Fan Report 0 RPM but the fan is spinning so now the Booster 1 fan spin at max speed as it think the Booster 2 fan not working. Now the real question how to find which part was faulty the Booster 2 sensor or the Processor board!? If i get a 2010 Processor Board will it work with my Mod 2009 Logic board? Need help urgently.