where do i check that?: I have a asus P6t. I installed the 3 rams in the first 3 slots and they are all in there nice and snug. The bios says "Usable Size 4088MB"
OK yea when it boots up and reads the system details it says that the memory is only 4gb.
btw this is a brand new computer
ah i fixed it. I switched memory slots....I guess the memory needs to be added in increments and in order: a1 a2 b1 b2 etc. I had it in a1, a2, and b2.