Am I to assume these are used components? The AMI uefi should beep 5 times consecutively if there were a cpu error. Which port do you use for the display onto a monitor? (DVI or HDMI from the motherboard if you using the IGP). Have you cleared the CMOS? Reset through jumper pin?
hmm, I’m glad its been resolved and worked out for you. I’ve had this motherboard; very sleek and booted everytime. There is no viable upgrade path. sans editing the eufi and shorting some pins on coffeelake cpu’s.