Laptop won't power on warning! before disassembling laptop always unplug power and remove the battery. when your laptop won't turn on with the ac power adapter plugged in, many people assume the adapter has failed and run out to buy a new one. that's an expensive way of troubleshooting a problem that you probably don't have.. Generally a driver power state failure is caused because a device driver was told to go to a low power state, (sleep) then it was told to wake up and it did not respond.. How to diagnose and replace a failed pc power supply. replace all external connections to the back of the computer (power cord, mouse, keyboard, monitor, network cable, speakers, etc). because its failure can cause voltage problems which can ruin your motherboard, hard drive, or other components. invest in a high quality power supply..
The effects power outages can have on your computer. technology explained electricity is" not "being channeled through the battery" so anything that overstresses the input circuits will cause laptop failure. and repairs are almost always more expensive than replacement of the whole laptop (sigh).. One thing to check would also be the power cable from the adapter to the computer. if there's a physical break in that line it would result in the same issue, slow battery decline and failure of power. find another ac adapter and see if it works. if that still fails, then tyler's advice stands.. If the matter is regarding power connection (whether battery or a matter of the laptop computer not turning on) the primary step is establishing that power is reaching to the laptop computer. power failure is a genuine issue in laptops if a particular laptop is been used on a regular basis..
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