Check to make sure your power cord is fully inserted into the computer and wall outlet. Remove power from the desktop, and press and hold the power button for 30 seconds. Plug power back in to the desktop and see if the computer will power on.
Acer Desktop Power Button Not Working - CCM - ccm.net
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Check to make sure your power cord is fully inserted into the computer and wall outlet. Remove power from the desktop, and press and hold the power button for 30 seconds. Plug power back in to the desktop and see if the computer will power on.
Acer Desktop Power Button Not Working - CCM - ccm.net