RE: No restart, optiplex 755 Small Form Factor Computer
Thank you very much for your answer.
I already did all that, restore BIOS to defaults was the first thing, the second thing is to rest the bios by removing the battery, I run the hardware diagnostics and it pass everything. as I mention the computer is working fine with windows 7 64 the only problem is it won't restart but shut down no problem.
I'm electronic technician I thought someone came across this problem and can lead to the part that causing the problem, probably a short or disconnected transistor in the motherboard.
Many thanks for the answer.