Chosen Solution
My desktop is white when it’s off and when it’s on but it make this really loud noise when turned on I have no idea what my girls did to it when using it to do homework It’s a hp all in one PC model # 20-c020 Also I have no ides what happened yesterday my daughter was doing homework on it then out of nowhere it when black first then we turned if off to see but nothing happened so we unplugged it and then we plugged it in and the screen was white I tried turning it on and it would make a loud Beeping sound
@cindy559 Hi Cindy, Can you hear the fan or the hard drive spinning ? If yes then it is powering up O.K. If you are adventurous this video https://www.youtube.com/watch?v=4qDGFsXa… shows how to open the case to allow you to take out the CMOS coin battery to reset the BIOS. You will see it just above the RAM module. Make sure it is unplugged and turned off before you attempt anything. Take your time and watch the video several times and be gentle. With the coin battery out press the power button (don’t plug in power!) and hold for 30 seconds to reset. If you carefully balance the screen you can test it before reassembling. It could take more or less 45 seconds before you see the screen come alive. So wait and be patient. If that fixes it while it is open you could also upgrade the RAM and replace the hard drive with an SSD drive for a much faster system.
