System: AN8 SLI, AMD 64 3800, 2 GB Patriot, Geforce 6800 GT 256, 2 PATA DVD drives, 40GB PATA HD (boot), 200 GB PATA HD, 200GB SATA HD. Win XP SP2 32-bit. A few weeks ago I got my first BSOD in years. It happended once and then did not happen again for a few days. Now, the computer starts up and just after logging in it goes to one of several BS. The ones that I remember off of the top of my head are 50, BE, and 8E. After much trial and error, it seem that the onboard NIC is the culpret. When disabled in BIOS, the system boots and is stable. Just as a note, I have swapped out the RAM and had the same problem, so I think that it is safe to rule that out. Also passes memtest (though it did hang once during memtest) The system has the current NForce drivers and BIOS. Windows is fully up to date. Passes virus and adware scans. I have read on the NVIDIA forum that there might be conflict between the SATA controller and the NIC but I have not had a chance to fool around with combinations to see if I can find an SATA port that does not give this problem. In principle, I do not think that I should have to. If I try that and it does work, the board is going to be returned or sold. Any thoughts or similar experiences?