Hi, first time builder here and I want to know a relatively cheap RAM (2 x 4GB) that is compatible with the msi Z77MA-G45 motherboard. I intend to have a i5 3570k and a gigabyte gtx 560 OC if that's relevant. I do know corsair vengeance is compatible but I want to cut costs where I can and I was wondering whether RAM products of unknown companies would fail more or something?