I'm to run 4GB of Kingston hyper-x with a half GB of video on a SLI system. My board sees all of it but Windows does not. I've tried fixing this with the Microsoft solution (PAE/3GB fix in msconfig) and I disabled the page filing system in Windows, I also tried some BOIS tweeks sugjested in a couple of sites where people were apperently B.S.'n.
If anybody has found a way to make this work I really could use some help.