I purchased a KA266 only to find out that it won't function with Samsung ram or my Rage Pro video card. I need the card to download my video camera. Why can't they tell you up front of these problems. Add a couple of hard drives, cdroms and a bunch of programs and you'll have one unstable MB. The black screen of death is common. Stay away from this one. I would have to spend hundreds extra to even start making the board work.