I have OCZ (OCZGXS700) 680W power supply. It has following problem:
When i plug it in and turn it on the fan starts spearing and power output on connectors is as suppose to 5 and 12v. Everything seems fine and in working order. BUT when i connect anything to PSU the device connected does not work. Meaning HDD doesn't sniping DVD-rom not retracting tray etc. I have checked DVD-rom with other PSU and it works fine.