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You may have memory problems. Memory module(s) may be defective or not seated correctly in place. Check the memory modules first. It seems that you have already checked the RAM modules. Connect the computer to a monitor and reboot to see if anything is displayed on external monitor.
Could be bad ram,hard drive or possibly a bad display panel or video card.Try using different ram and removing the hard drive then try it.Also,connect it to an external display and see if it shows video or not.If after trying these things it still isn't showing let me know and i'll try to help more.
try to turn on/off the pc , remove all the cables and battery . Press and hold the power battery for 5 seconds . Reinsert the cables and battery. Turn on the pc, if the screen did not show up, please call tech support for possible repair...
motherboard is not alright. there are failing compaonents on the motherboard( capacitors, resistors e.tc). however, try to go to bios and stay there for some time and see if the same will happen.
It shows no power on your laptop but it shows you the dvd player led comes on then off. I would suggest try the following:
1. Remove laptop battery, optical drive, hard drive and ram. Remove external peripherals as well.2. Make sure AC Adapter is not yet connected to the laptop. Press and hold on the laptop's power button for 10 seconds to drain the power flea.3. Connect the AC Adapter to a known good power outlet, check AC Adapter power LED if it is on. Try to sense if AC Adapter is not making a bit of noise when it is plugin to the wall power outlet.4. Connect now the AC Adapter to the laptop. Check if AC Adapter LED stays on when it is connected to the laptop. If the LED stays on means the AC Adapter is fine. If the AC Adapter LED turned off check the AC Adapter pin that goes to the laptop AC socket if it is loose.5. If AC Adapter stays on after connecting to the laptop try to power on laptop. If no power LED comes on then this is motherboard problem. 6. Before replacing the motherboard there is one checking needs to do. If you can open your laptop bottom part then good, do this when laptop is not connected to any power source. Try to reseat the laptop CMOS battery then try to power on laptop after, if still fails then replace motherboard. I hope this helps.
could it be your hard drive...... and have you tried getting into the bios at all.... if you can get into your bios, change your boot order to cd drive first, install your os disk and try doing a repair . if that dont work try a new hard drive.