Acer Aspire 5520 boot problem power on linght blinks
When i try to boot the 5520 the power on light blinks green for a while, and if i try again afer a minute or so sometimes it boot ups. I have allready reinstaled the OS, but it seems to be the problem happens even before the BIOS boots up.
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thats mean the charging system is faulty and sometimes there are breakages at the edge of the power cable where the pin is.try another power cable if it shows the same signal then the fault is on the laptop board.
It looks like your battery is either discharged or has a short circuit.
Plug the power AC cord in the laptop and let recharge the battery at least 3 hours before you try to start it again. If the computer boots up, enter the BIOS and check to see if you have a "battery check" oprion. If you do, start it and let it run until it is done (it may take several hours to complete). It will check the battery charge cycle.
just conncet the main power and keep as it is for 10 - 20 minutes let the battery get charged. latre on try to swicth on the laptop .if you still facing the problem then remove the battery from laptop and directly switch on main power.
I think it might be the motherboard, if its not regulating the voltage properly then to much will go thru the motherboard and the fan won't be able to cool things down properly. Eventually then the motherboard will fail and then no video like your having now.
Try these steps anyway just to be sure:
only hook up the AC Adapter keep the battery disconnected. See if it turns on, if you still get a blinking green light then go ahead and turn the laptop off.
At this point, unseat and reseat the memory one stick at a time in each slot one at a time. Try turning on the laptop after each stick reinsertion.
If that doesn't do it then disconnect the hard drive and the dvd drive from the laptop.
Then try turning on the laptop, if you still can't get video then the motherboard is bad and would need to be replaced.