I am making an HTPC, which I want to enter standby when not in use. Mobo is DP35DP with latest BIOS. OS is XP SP3. Application is MediaPortal. After much persuasion and using the 'MCE Standby Tool', I got system to go to S3 reliably. It will wake up with magic packet to builtin ethernet, but not with USB wireless keyboard or MCE remote control. The lights go out on the wireless receiver, which I take to mean that there is no power on the USB skt during S3. Is this a Mobo problem? A power supply problem? Not sure where to go from here.