Acer won't turn on only black screen

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I followed the procedures of unplugging power cord removing batter and removing memory sticks and cleaning but when i replaced them it was the same. there are 2 light in front that are on but each time i power up i cannot hear HDD powering up what can I do?

1 reply

The two lights say "your motherboard is bad". Take it to a technician, there is nothing we can do to tweak or troubleshoot.