ASUS H81M-C

Just replaced my i5-4460 with a i7-4790 For the fist time it did show me american megatrends and detected a new cpu Then i went to bios Did not change anything and tried to boot up into windows But it did get stuck here: "Please press DEL or F2 to enter UEFI BIOS settings"...

I built a new PC last week (specs below) and used the stock cooler because the aio was going to be a week late. Everything ran perfect. Got the aio and installed it, now I have no picture. To install the new cooler, I unplugged all cords and connectors connected to the mb except for the ram. I...