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While off, computer suddenly powers on.

Last response: in Windows 7
May 2, 2011 5:25:25 PM

Hello, While off, my computer (Dell Optiplex 755) suddenly powers on and two seconds later powers off again. This happens every 20-30 minute 24/7. Any ide why it does this?

a b $ Windows 7
May 2, 2011 8:14:33 PM

Check bios for wol (wake on lan) and windows advanced power settings, sleep->wake up timers.
a c 416 $ Windows 7
May 2, 2011 8:17:20 PM

my old 745 did this but i had a bad board!!!!!