Good day everyone, I'm having a slight problem with my Asus motherboard. It's a M4A785TD-V EVO and I had in it previous two 2GB Centon RAM sticks. I wanted to upgrade to 8GB so I went out and bought four 2GB Kingston KHX1600C9AD3B1/2G RAM sticks. Well, the problem is that if I plug in all four my comp doesn't go to the BIOS screen or anything like that but if I plug two kingston into the black slots and my old Centons into the 4 slots it works fine. Can anyone tell me why it won't accept the other 2 Kingston in the blue slots?