A friend was tidying up my computer and its internal parts, but it stopped working completely.
A friend was tidying up my computer and its internal parts, but it stopped working completely.
I'm not sure if this is the right place for this. I was at my friend's house and then I was like we should clean my PC and my friend started doing it while I was downstairs listening to music and little tired. Then I got an idea to help him with the cleaning. He was already half way done and was having some trouble trying to put the front panel back but then we finally got it to place again. Then we repasted GPU & CPU and after that connected everything as before and placed side panels and carried the PC to closest monitor. Then we plug power and HDMI, Displayport, mouse, keyboard and press power and nothing happened. We saw power supply flashing green light (probably meant that there was a short circuit). Then we unplug HDMI cables from capture card and tried turning on again and we got POST and windows logo but then we smelled something was smelting/burning. We instantly cut power off and try to think of what's going on. We take side panel off to see motherboard and we thought it was the capture card but then the same smell. Then we took a thermal camera and check the motherboard and saw that on top right corner there was a warm spot. We took all cables off that were in that corner connected but still it got hot. Then we waited for a while and tried to think of what was causing it to get hot. Then we realized that it got hot when we plug power to power supply and then I saw the transistor that got a hole in it (Picture attached probably). Then we tried to think of what was the transistor for and it was for front USBs (Probably). But we don't know exactly what caused the short circuit on the transistor. Because now the motherboard is technically dead unless we remove the transistor. Not sure if it's recommended or is it going to fix anything but I wanted to ask should I try to remove the transistor? Because the motherboard POSTs still at least last time I tried (before seeing the hole in the transistor and when power supply didn't turn off) There's also another picture of the whole case inside.
If someone can remove the solder neatly and get a matching part, you might try fixing the board again. If not, it likely failed due to another issue—perhaps a damaged cable or incorrect connection that caused excessive current through the transistor when turned on.