How to Check a Computer System Before Powering Up

"Hey! My name is Kyle Hodge and today I am going to be explaining to you how to un-install and install motherboards. After you are done installing the graphics card, plugging back in the power supply and plugging in the hard drives, it's time to make sure and go back over everything before you want to power the system. So double check that your all is secured in place on the CPU. Make sure the fan is plugged in and ready to go. Make sure that all attachments such as CPI Express, AGP and PCI cards are securely in place. Make sure that the power is in and make sure your RAM is chipped in and not loose at all. After you have made all of those checks and you are 100 percent sure that your system is ready to go, put the case back together and power it on."