My son and are have a Maximus VIII Hero with an I7-7700K processor, 1 stick of PNY ANARCHY DDR4 2133MHZ RAM, I had 2 matching ones in it but was getting a memory error on the other one, figured it was bad, no video card yet. Trying to get it to boot to the BIOS using the onboard graphics. I'm getting a code 62 then a quick flash to 72 then a solid 62 again. All the fans and lights are on but no beeps. I tried to put an old video card into to see if I could get something up on the screen and still nothing same code. Any ideas? We are in desperate need of help!