hi everyone i have a gigabyte mobo ga-661fxm-zr revision: 1.0 board. i take out the mobo its housing (case) for testing purposes then install CPU, one RAM module and HDD for some load power on the switch, i think the mobo take power from the power supply but when i switch to off it doesn't power off i think maybe the problem PG signal on the power supply is it possible? sorry my bad English please some give me some advise. thanks