AA battery charger that shorted while plugged in to USB port bricked my HP Envy. Dead motherboard?

[RejectedWitness]

Computer is an HP Envy Desktop, TE01-0034

I have this USB charger, I was charging a AA battery, and had it plugged in to my HP Envy desktop USB port. I've been doing this for months with no issue, but the charger shorted out (confirmed by later plugging it in to wall charger, and seeing it's screen say the battery was half charged, to fully charged, to a dead screen, and back again within seconds, whenever I touched it or moved the cable) I went to check on the battery to find the computer was turned off. When I tried to turn it on,  the light on the front wouldn't come on, nothing. I've tried leaving it to sit unplugged, or plugged in, before turning it on, still nothing.

I pulled the power supply connections off, and checked the voltage at both 4 wire connectors, while shorting the green and grey ones, got 12.2 V with a multimeter, so that seems fine, it says it should be 12.1 V on the power supply label. I've heard a power supply could show good voltage but not perform under load, not sure how to safely check for that?

Does this mean my motherboard is dead, or is there anything else that it could be?

Thank you in advance!!!!

Jared

[Nirvana_95]

Hi @RejectedWitness

Welcome to the HP Support Community. Thanks for bringing this to our notice.

I see that you are facing battery-related issues on your system. Do not worry, we are here to fix it.

May I know from when are you facing this issue?

Did you make any hardware or software-related changes to it?

May I know if you are using HP genuine AC adapter?

Do you see any lights on the system when you connect the adapter?

Press and hold the power button for 30 seconds and check if the issue persists. 

Hope this helps! Keep me posted. 

Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution. 

Click the “Yes" on the bottom right to say “Thanks” for helping. 

[RejectedWitness]

Thank you for your reply!! 

But you may want to read my post a little closer, I'm not having a problem with the computer's battery; it's a desktop computer, not a laptop. I was trying to charge some Energizer AA batteries off of the USB port on my desktop, and that charger shorted out, and wrecked my computer.

To answer your questions:

I made no hardware or software changes,

there are no lights coming on anywhere on the system,

It is the stock HP PSU,

and I have already tried pressing and holding the power button for 30 seconds.

Thanks for your help!

[Nirvana_95]

Thanks for your response.

I have sent you a private message with further instructions to get this issue sorted. In order to access your private messages, click the private message icon on the upper right corner of your HP community profile, next to your profile Name or simply click on this link.

Thanks!