About 2 or 3 weeks ago I upgraded most of my PC. I got an ASRock Z77 Extreme 4, 3770k, and 8gb of GSkill 1600. I broke one of the pins on my cooler when removing it from the old mobo so I was using the stock Intel cooler. Last week I upgraded to a Corsair H80 and HIS 7870. I put the new cooler and GPU in 2 nights ago and now have problems. I had to move my DVD burner, 1 hard drive, and redo some wiring in order to get the new stuff to fit. When I booted up it just cycles, doesn't even make it to the splash screen. I keep getting two errors in the LED display area. Error 10 (PEI Core is started) and error 55 (Memory not installed). My memory is definitely installed. I have pulled both sticks out, switched sockets, flopped sticks, and whatever else you can do. I've emailed ASRock with no response so far. I don't have any other sticks or RAM to test with. Any suggestions?