I have an Asus P9X79-E-WS, 3930k and 4gb of some old ram that i found I wanted to test the board and the new components to see what I would be working with but my problem is that the board doesn't read 4gb of ram it reads 3gb in bios and windows. However the cpuz shows that I'm running quad channel and 4gb or ram and it detects the ram so is the ram or could it be the board?