Startup loop

Hello. I have just finished assembling my first PC, every component new and fresh out of the box. However, I turn on the Power Supply, and then switch everything on, and it works for a good 10 seconds before it shuts off, then turns back on again, and keeps doing that, turning on and off. Each...

I have a MSI z170i gaming pro ac Mobo and ordered a pentium g4560 processor. The MSI website says that it supports kaby lake and that processor but it also says that it might need an update. Is it possible to update it without a CPU or won't I need to update it?

This is the moba http://www.amazon.com/Gigabyte-DDR3-1150-Motherboard-GA-Z97X-UD3H/dp/B00JKCHDC2?ie=UTF8&psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s00