1. Please ensure your RAM has enough frequency (MHz) to support your CPU
2. Please ensure you have pluged all required power cable to your mainboard, normally, there should be 1 big and 1 small (4 hole) power cable for ATX or 1 larger big cable for ATX2
3. Please ensure you have pluged the 開機button條cable correctly on your mainboard.
4. If your PC has some sould when power on, this means either your display card or RAM do not work.