I plugged a 12volt dc psu into a usb hub my computer turns off usb hub starts smoking, i took it apart and 2 capactors exploded.
My computer doesn't turn on now.
My computer doesn't turn on now.
Hardware I killed my pc and made a usb hub explode
- Thread starter Jokey_Carrot
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Solution
While that's no exactly a question… I assume you wanted to ask what happened and what you should do.
My best guess is: The hub had no fault tolerance, fuses or protection against overvoltage and the 12 volts went right though the USB cable and fried the mainboard. You will probably have to replace it.
My best guess is: The hub had no fault tolerance, fuses or protection against overvoltage and the 12 volts went right though the USB cable and fried the mainboard. You will probably have to replace it.
Unplug your computer for a while. Perform an exorcism. Then plug it back in and pray. If you're lucky, there were some protective designs in the motherboard/psu. Else yeah, probably have to replace motherboard and possibly other components.
Also, were the blown capacitors on the hub or the motherboard? If the motherboard, you might want to try replacing the capacitors (only if you are confident in your soldering skills).
Also, were the blown capacitors on the hub or the motherboard? If the motherboard, you might want to try replacing the capacitors (only if you are confident in your soldering skills).
the hub had borke capacitors imma leave evry thing uplugged over the night i hav e completely removed the psu as after some advanced testing (briding the enable pin) i have conluded that the psu might be fryed, i will test a differnt psu tommorow.
A component tester is useful but you have to desolder a lot of components in order to test them and motherboards have a LOT of components.
Anyway motherboards aren't that expensive so I would just try with another motherboard and PSU and if it doesn't work, start taking out or swapping other components. Chances are your drives, RAM and CPU are still fine. If you're lucky, the motherboard might still work fine but with faulty USB ports, you could just install a cheap USB PCI-e card to get working USB again.
I had a PSU blowout once, it took my HDD with it, and also my CD burner was unreliable afterwards so that needed a replacement too. Motherboard and CPU still worked fine but essentially anything connected directly to the PSU was destroyed (although you'd think that would include the motherboard but for some reason not)
With the USB-A to C cable fiasco that had some devices get damaged from improperly made USB A to C cables, it was noted that in some cases the entire device was fried (could have been a power issue and the rest of the device was fine - they were not desktop PCs so it wasn't as simple as just swapping out parts) but in other cases only the USB controller was fried. Since your PSU got fried which is all the way on the opposite end as far as schematics go, anything inbetween could have been fried too - that mainly means your mobo. So PSU is most certainly fried, mobo is a maybe, other parts are probably fine. But even if the mobo appears to work, that doesn't mean it wasn't damaged and won't cause issues. If you replace both and it still doesn't work the next thing to look at would be the CPU since that does have some connection to USB.
Anyway motherboards aren't that expensive so I would just try with another motherboard and PSU and if it doesn't work, start taking out or swapping other components. Chances are your drives, RAM and CPU are still fine. If you're lucky, the motherboard might still work fine but with faulty USB ports, you could just install a cheap USB PCI-e card to get working USB again.
I had a PSU blowout once, it took my HDD with it, and also my CD burner was unreliable afterwards so that needed a replacement too. Motherboard and CPU still worked fine but essentially anything connected directly to the PSU was destroyed (although you'd think that would include the motherboard but for some reason not)
With the USB-A to C cable fiasco that had some devices get damaged from improperly made USB A to C cables, it was noted that in some cases the entire device was fried (could have been a power issue and the rest of the device was fine - they were not desktop PCs so it wasn't as simple as just swapping out parts) but in other cases only the USB controller was fried. Since your PSU got fried which is all the way on the opposite end as far as schematics go, anything inbetween could have been fried too - that mainly means your mobo. So PSU is most certainly fried, mobo is a maybe, other parts are probably fine. But even if the mobo appears to work, that doesn't mean it wasn't damaged and won't cause issues. If you replace both and it still doesn't work the next thing to look at would be the CPU since that does have some connection to USB.
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