I am very interested in what the eventual solution may be. I had the same exact problem as the OP, only I didnt have the luxury of having a working box to compare it to. Same exact mobo, Asus p6t. unfortunately, asus support was completely unhelpful and they dont even really support this mobo anymore. All of the suggestions given here are good ones, but I am a total mess when it comes to this stuff. I got quotes to "fix" it in nyc around 500 bucks and thats way too much. I was going to take it to microcenter for 40 bucks, but they dont have triple channel memory in stock. Please let me know how it goes.