Need to get some advice from you all here. I have a P8Z77-V LK mobo, i3 Ivy Bridge LGA 1155 Costa Rica, and 1 stick of CORSAIR Vengeance 8GB. This is my second set as I RMA the first one to Newegg because I was having the same problem. I run the bare minimum just to test the mobo, psu, cpu, heatsink/fan, and 1 stick of ram. It fails to boot and just hangs up with the DRAM led blinking or remaining on constant. I checked the DIMM seating, tried all 4 DIMM slots, used 1 stick of RAM from my own computer, and ran the MEMok feature and it still never boots.