When I press power button it does not work. No lights, screen is black.
I have already checked power suply. Power supply works.
I also checked conector with power supply in mainboard. Everything is fine. Could you help me please? Many thanks
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Try replacing the cmos battery. Do you hear the drive engage or do you hear nothing? I just had an acer doing the same thing and that fixed it. Did you notice if the clock was correct? (when it did run). Just for good measure reseat the ram (pop it out plug it back in). By the way the cmos battery is probably underneath the keyboard. Consult your manual for the specific location.
how do you determine power is reaching motherboard ?if it is not turning on chk if u could hear any fan spinning if yes then ac adapter is working remove the battery and unplug the ac adapter and hold the power button for 10 sec and reconnect the ac adapter and turn on the laptop if not then remove the memory and turn on the laptop if u hear beeps then the mother board is fine
try this take a flashlight on look at the screen it will be hard to see but if you see your screen their is a connecter between the screen and the top of the laptop that is hard to see but you can take a pen must be steel and put it between the screen and laptop and your screen should come on if not them you will need a new screen but i know it works i did to laptop