Make sure ACPI is enabled and check the Power Options panel to set the Power button function.
Desktop Properties/Screen Saver/Power/Advanced
I am running a EPIA 800 with a 150w OPUS, I recently reworked my setup a little and now the startup/shutdown controller of the OPUS doesn't work, other than startup/shutdown it works fine.
I was running Win 2000, changed to XP now the startup/shutdown controller doesn't work. I didn't adjust the BIOS and I have tried rotating the green/white power wire to make sure they were on the correct jumper but nothing seems to work.
P.S. I also emailed OPUS tech support for help as well.
New site at
2002 Toyota Tacoma Doublecab