HI, lightning took out my dell dimension 2400 pent.4 2.4ghz mainboard. What can I replace it with? Other than DELL, the drives still work and so does the sound and video cards I also thin the PS is OK I swapped it out and the main board still had the green led but nothing else. Jerry The NOSPIN Group is now offering Free PC Tech support at our newest website: http://freepctech.com