it could be several things - the most likely is a cable incorrectly inserted. Go back to basics - remove the connections to the hard drive and dvd drive = leave just 1 stick of ram in and see if it will start and let you into the bios.
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This 2D animation about monsters is illustrated in a Van Gogh painterly style
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Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.