Question 1 USB port short circuiting computer - What is the cause?

[JuliaLT]

Hi everyone.

I recently purchased a new CPU, motherboard and RAM combo. Since this upgrade my computer shuts down if I plug any USB device into one specific back port.

There is a small spark and the pc instantly turns off, no warning messages that I could see in time. The USB device does not need to be connected fully for this to happen, it happens as I am starting to insert it.

Does anyone know what could be causing this? What is the most likely reason?

My PC specs are as follows:
AMD Ryzen 7 2700x 8 core
ASUS B450 TUF GAMING-PLUS
HyperX predator 24GB RGB RAM
Windows 10 Pro
AMD Radeon R9380 (several years old)
Thermanltake 550w PSU (several years old)

Thanks

 

[XD I know pc's]

ok first how many yrs old is the Psu send the exact name and model

 

[JuliaLT]

The PSU is a Thermaltake Litepower 550W LT-550P.
It must be about 4-5 years old.

 

[XD I know pc's]

thats bad 4-5 yrs old it might need changing and not event 80+ certified i think thers ur problem either that or the problem lies in the motherboard did u try the cases front case usb ports or motherboards back usb ports

 

[XD I know pc's]

if its one specific port check if its bent or might just be defectivelike u said then try consulting asus for help if u still got warranty for the tuf board

 

[JuliaLT]

I tried several ports. There is only one back port that is causing this issue. The rest, front and back, seem fine.

Thanks for your advice. I will try upgrade it asap.

 

[XD I know pc's]

it might just be the mobo not the psu anyway glad i could help try consulting asus ant check if u still got warranty if u do return it or if ur super lucky they might send u a new one

 

[JuliaLT]

Is it possible that something is touching the motherboard and causing this, maybe it was badly installed?

 

[ElectrO_90]

What are you plugging in to the USB?

 

[XD I know pc's]

https://rog.asus.com/forum/showthread.php?102862-ASUS-repair-center-damaged-my-motherboard
check this out before taking steps towards asus repair center if thats the route ur taking cuz asus suposedly damaged this dudes mobo so thats a thing take good care glad i could help! 😊

 

[XD I know pc's]

umm if a steel object is touching it it might have caused this but im not 100% sure

 

[JuliaLT]

I have tried plugging in a headset and a wacom drawing tablet. Both had the same effect. That Asus thread looks very intimidating, also interesting that the the consumer in that thread was originally returning his Asus motherboard due to a USB issue.

 

[XD I know pc's]

i hope u find a good solution to ur case here but theres not much i can do srry
i hope i helped at least a little

 

[XD I know pc's]

Fix: Computer Shuts Down when USB is Plugged In

If your PC shuts down whenever you plug in a USB device, you definitely have a big issue to solve. There are several reasons your PC would shut down when

appuals.com

try this forum tips