But if there's still no display on the external monitor that means the problem lies in the motherboard. If there's a display on the external monitor that could mean that the problem is the built in display. If it will still not work, connect an external monitor and see if you'll get any display from it. Proceed with reseating the RAM's if trying a different AC adapter will not work, remove them all for couple of seconds then put them back in making sure everything is seated properly. Next is to try a different AC adapter that has the same voltage and see if it will boot up or not. Start by doing a hard reboot, unplug the AC adapter then press and hold the power button for 20 seconds then try booting it up again. First, make sure to disconnect all the cables and drivers connected to the laptop. Please do try these troubleshooting steps that may help. Step 3 worked for me, so if you are running into the same issue, I hope this method can help you too! The 3.0V helps you verify that this is the CMOS battery. ***My CMOS was right next to my harddrive and looks like a black round button that was wrapping in black tape. Unplug the CMOS battery carefully and wait for 2 minutes before plugging it back in. If it doesn't work, then unplug again, and locate the CMOS battery* in your laptop. If it doesn't work, then unplug again, and reseat the RAM. Please the power key for ten seconds then plug in power adapter and try turning it onĢ. I tried all the methods I found online (up to the point I was considering doing a motherboard reflow myself) UNTIL a computer friend told me this:ġ. The power adapter & battery were working and the power light turned on, but the fan/CPU/hard drive did not so the computer did not boot up at all. I have a Asus Zenbook UX303LN laptop that did not turn on all of a sudden for no reason. I am so happy that I fixed my computer so I really wanted to share with everyone my method!
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