I was working on a clients PC that was struck by lighting. I replaced the PSU, Mobo, RAM, and VGA. The system receives power(i.e. drives boot up, power light comes on, motherboard light comes on) but the monitor does not receive signal, and I get no beep codes. The last step is the CPU, but before I order one, I wanted to know if there was anyone here that would have anything else to try. The system is a Dell Demision 4500. I did make sure to buy a Dell "authorized" PSU before installing it.
Thanks for any and all ideas.