Video answer: How to install a cpu
Top best answers to the question «Should i install cpu cooler before or after motherboard»
When you're assembling a PC, few things are more frustrating than having to remove the motherboard to install a CPU cooler. If the motherboard tray in your case doesn't have a cutout in the area behind the CPU socket, install the CPU cooler before mounting the motherboard.
Video answer: Asus how-to - install cpu, cpu fan, & memory