Problems with the mainboard

a load of bull

it could be a number of things motherboard, mother board settings, power adapter, battery.

1.strip it down to what it came with ie remove everthing that is connected to it- all usb devices, battery, then plug it in with just the power adapter.

2. try resetting nvram- this is at acers website make sure its for your model. using a different power adapter or just on battery(if you have one).

3. Take it to datadoctors as they are good. have them use another adapter so you do not have to buy another one.