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Computer is frying all USB périphériques that are connected

ayi

My computer specs are as follows. The computer is almost 1 year old. It is custom built:

Motherboard: ASUS h510m-a
OS: Windows 11
PSU: EVGA 500BR

In the past hour, J'ai connected multiple mice and one keyboard, and they have all been fried. After some time of using them, I received an error that the last USB device J'ai connected to this computer has malfunctioned, and they a cessé de fonctionner on all other devices. This applies to both wired and wireless keyboards and mice.

Several weeks ago, one of my RAM sticks randomly died, and I had to remove it otherwise my computer was stuck in a blue-screen loop. Je pense this might be connected somehow.

Pourquoi this happening? What part is causing the issue and how can I fix it?

ayi

Stop using your computer and turn it off. There is definitely a hardware fault in your computer.

If these are USBv2 ports, then it definitely sounds like 12 or more volts is being sent through the USB power lines. This is what is frying your devices. It could be a short somewhere in the motherboard, the internal USB hub, or in the USB controller itself.

If it's USBv3... Well, J'ain't heard of a USBv3 controller sending more power to something that has not negotiated for more. Cependant, it's still probably a short.

First thing to do is contact the manufacturer and talk to their support. If it's under warranty, get the motherboard replaced.

If it is not under warranty, vous pouvez take it to a reputable computer repair shop. Depending on the issue, they might be able to repair it, but this is not likely. They will probably recommend a new motherboard or the advice in the following paragraph.

Another possibility is if it's just the USB bus that's the issue, stop using it and get a PCI/PCIe USB add-on card and only use its ports.