r/techsupport•
jsdod

HP Omen short-circuit after headset is connected to USB port and won’t power up anymore

Open

I connected a Bluetooth headset to a USB port at the front of my case and the computer immediately shutdown and will not boot up anymore. Nothing happens when I push the power button. The green light at the back of the computer is lit so I am assuming the PSU is fine and there is power. I had connected the headset before with the same cable without any issue.

I am assuming there was a short-circuit when I plugged in the USB device but not sure what next steps I should take to troubleshoot. I tried disconnecting the front USB ports from the motherboard which did not change anything. I read online I might try to reset the CMOS but have never done that before.

The PC is an HP Omen that is about 18 months old and out of warranty. I fail to understand how a USB device can short-circuit a motherboard or any component of the PC though...

Anyways, any opinion / advice would be much appreciated from you guys! I am planning to bring the PC for repair to a local shop during the week if needed but would love to be able to do some basic troubleshooting myself.

Posted Feb 23, 2019, 8:27 PM UTC

34
Matty10101•

Head set might have had a problem, causing this to happen. Just so I know the laws, what country do you live in?

2
jsdodOP•

This is in the US (NJ). The computer was bought from Best Buy. I wouldn’t be surprised that the headset would have an issue as it’s a pretty cheap one but still, shouldn’t the computer be able to protect itself? I mean, worst case, I would expect the USB port to get destroyed.

1
Matty10101•

Well the US laws suck for this problem, must PCs don’t have a protection against this, take a look at USB killer. But for your problem try looking at the mother board and try identify any burst traces or chips

2
jsdodOP•

I’ll take a look, thanks for the info!

1