Thanks for your timely reply. I will take your advice and order the Mushkin. As for the DVD Iso, I asked because after installing the drivers I downloaded from Asus' website, I still have one unknown device on the computer, so I wanted to see what was on the DVD that I didn't get from the site. In any event, rightclicking shows the device's location to be "on Intel(R) ICH10R LPC Interface Controller - " which seems to imply that the southbridge chip may not have been installed. But I do show ICH10 Family 2 and 4 port serial ATA storage controllers installed. Any idea?