At the beginning of last year I finished my Linux workstation. The box has dual AMD MP 2800 procs in it. When I first got RedHat on it, it ran nicely, but it would freeze quite often, namely when I tried to do something like play music. I was using a Gigabyte 7DPXDW mobo, but I accidentally fried the BIOS trying to upgrade it. I then got a Tyan Tiger MPX board, which runs beautifully, but I had the same problems. I went into the BIOS and switched the multiprocessor setting to 1.1 from 1.4. This helped a lot; I can now work with multimedia with little problem. However, I still get crashes. They seem to happen randomly (not as often, but I would like to eliminate them). I have had this happen with numorous distros (including SuSE, RedHat, Fedora, and Gentoo), so I don't think this is the problem. I tried running Windoze XP on this box, and didn't seem to have any problems, though it didn't run as well as Linux does. One day I was running [email protected] while I wasn't using my box, and noticed that it had gotten a segmentation fault and exited. I Googled around a bit, and found that this can be caused by a RAM issue. In addition to this, I read somewhere that for the dual proc boards, it is best to use ECC RAM, which I don't use (I use 512 MB Kingston unbuffered right now). I ran Memtest86 on this comp a while back without any errors, but I will try again. In the mean time, has anyone had any experiences with the buffered vs unbuffered RAM in the dually boxes? I'm planning on getting some buffered RAM in the future anyway, as my Tyan board can take up to 4 gigs buffered.