I run a ASUS A8N32SLI Deluxe Board with a AMD X2 4200+ processor and 2GB RAM under Windows XP Prof SP2. The system has 2 SATA HDDs (ST3160812AS), which I run as Raid 0 Konfiguration. As Graphic Adapters I use 2 Gigabyte GV-NX66256DP2, but I am not very lucky with that configuration so far. If I enable SLI Mode the system freezes from time to time while playing games. Often times the freezes happen at the time the system access the HDDs. With SLI Mode off there are no system freezes. In both cases SLI on or off the system crashs frequently while playing games (for SLI on much more frequent, than for SLI off - but it happens for both cases) - if the system crashs, there are no error messages, etc - the system just reboots.... (I attach some minidumps) and hope someone can help me. By the way, I affraid not having enough power - so I upgrade to 600W power supply. Futhermore I upgarde the motherborads BIOS and install different NVIDIA display drivers (tested so far 78.01, 84.21 and 93.71) - no improvement at all.... The only way playing games currently stable is to just install one of the graphic adapter into the motherboard. Does anybody knows how to fix that?