I am trying to get my two sticks (2x 2Gb) of Corsair RAM (CM2X2048-6400C5C) to work in my Asus P5Q Deluxe mobo. Both sticks work perfectly because I have tested them in all slots individually and the computer works flawlessly. However, the problem that I'm having is when I put both sticks in, be that in A1/B1 or A2/B2. With both sticks in, the computers powers on, the fans spin up but the computer progresses no further and does not POST - a blank screen. What could be wrong? Is there a setting to adjust? Tom.