04-06-2019 04:57 PM - edited 04-06-2019 05:18 PM
I have a HP All-in-One - 20-r013w. It's always had a few problems and I bought the thing brand new. But it won't turn on now, and it hasn't for at least three weeks. When I press the power button the light turns on, I head a very faint sound of the comupter starting up. Its barely audible, and then it just fades out to nothing. Ten seconds or so later the power light turns off all on its own. A few seconds after that it turns back on by itself and the whole process starts all over again. During all of this the screen remains completely black, there isn't even a flicker.
I have tried all of the trouble shooting tutorials I can find but Nothing has worked. I have unplugged it and done the factory reset of holding int he power button (which doesn't make sense to me since it's unplugged but I did it several times anyway). I made sure the outlet worked, which is does because it's been plugged into this outlet for a while now. I disconnected all parts of the power cord then reconnected it.
I think I might need to do something with theh BIOS, but I don't knwo how. When the computer is on for those 10 seconds or so I have tried pressing the F10 or the Esc keys in hopes something would help and I could get any screen at all, but nothing works. The keyboard doesn't even light up and I don't think the computer is even registering it as being plugged in.
Additional information you might need is my OS. I have Windows 10. I am not use what kind, I think it is 64 bit so that's what I put on the form here. There are no blinking lights or any other sounds other than the faint sound I already mentioned, and the power light wich remains steady until the unit shuts itself off again. I can't think of anything I might have left out but please if more information is needed let me know.
Any help would be greately appreciated, thank you!
04-06-2019 08:15 PM - edited 04-06-2019 08:27 PM
Welcome to the forum.
I am not a HP employee.
This symptom points to a external power supply problem or a motherboard problem.
There is no easy fix.
You may be out of warranty (your PC has a 2015 birth date).
I suggest you have a local, reputable PC Tech have a look.
A power supply problem may be possible to fix by getting a replacement power supply. A motherboard problem may not be fixable unless you can find a replacement motherboard online. Or the local PC tech may be able to find this component.
04-06-2019 08:31 PM
Yes, the external power adapter may have failed.
Try starting your PC with only a keyboard and mouse. Try different USB ports.
You could also have a short in a USB port. Or a USB device could be in trouble.
The possible causes are endless.