I own a acer aspire 5920 and i push the power button and it starts to power up then stops and the power light flashes

Possibly a RAM issue or errors on the hard drive stopping the display driver from working properly. Remove power sources, remove RAM and hard drive. See if you get a display when the power adapter is reconnected. If you do, remove power source and fit RAM, (if not motherboard may be faulty). Repeat and if still working, remove power, fit Hard Drive and boot again.
Assuming your OS is Windows Based;
Reboot and use safe mode run CHKDSK/F and when finished check the drivers.

Your power supply or regulator in you laptop has gone south. sorry no quick fix for this one. It needs repaired and would include tracking down soldered connections.

sorry to tell you this.

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reset button on acer aspire 5920 » Gadgets Manual

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You've probably broken something on the motherboard.
Contact ACER, to get a cost-estimate for a new motherboard.
It won't be cheap!

Hi


Thanks for using FixYa. You will need to reset the Laptop if it is not starting up. Follow the procedure as under to reset it---

Remove all connections to and from the laptop. Now remove the battery and press and hold the power on button for 2 minutes. Release the power on button. Slip in the battery pack. Plug in the power to the laptop and to the wall. Please do not plug in any other devices and now try the Laptop powering it on to resolve the issue.

Please do rate the solution and revert for further assistance.


Thanks

Rylee

Your motherboard is probably shorting out your A/C adapter, you may need a new motherboard. With a Dell, the A/C adapter light will be green when plugged into the wall but as soon as you plug it into the PC the green light goes off. Which means that the Motherboard is shorting out the A/C adapter...

hope this helps

The power button may not work, that is most common in laptops, or you have a short.

try pressing on fn+f5 or fn+f6 a couple of times each. Maybe the screen got switched to projector status by mistake.

take the hard drive ot and the pote ti bake in the prese bote if theat dote work take the bater ot and pote it bake in

Mine does this but what I found was that if you hold the power button down for about 10 seconds when you are turning it on, it works.