My power supply unit exploded, and now everything in my computer system stops working properly.
My power supply unit exploded, and now everything in my computer system stops working properly.
Hey everyone, I'm stuck with a weird and annoying problem and need some help from the community. Here is exactly what happened step by step: I bought a new GPU and power supply (Asus Prime RTX 5070 Ti + Corsair RM850e) and everything worked for four days when gaming or doing AI work. On day four, when I pressed the power button loud bangs came out and the power supply "exploded." The house breaker tripped whenever I tried to turn the power on. Even after I replaced both the failing PSU and the old GPU with my old ones, it started up but crashed about an hour later. Now, even though a paperclip test failed (the new power supply won't shut off properly), I managed to get back into BIOS for half an hour where voltages looked fine. But then after two minutes in BIOS, the PC suddenly turned off again. Restarting is now all over the place—it sometimes turns on briefly but then cuts out and won't turn back on at all. So far, I've tried this: a multimeter checked the motherboard for shorts between power lines and ground; a new GPU was checked with no shorts found; there were no visible burns or bad parts on the motherboard. What's next? What should I do now? Could something be broken? Should I just plug in the new GPU and power supply when it comes back from returning it for repair?
If something breaks, it could spread around. The CPU, MOBO, RAM, and PSU are usually where things go wrong. That loud bang might have been those caps on the motherboard popping too. I'd call Corsair to see if they can help. Maybe they'll fix it or maybe not, but I can't tell for sure. To be sure, swap out some known working parts in a room with other good electronics, or take the whole PC and all those extra pieces to a repair shop so they figure it out yourself. If you need new pieces to test them on, make sure they have a solid return policy. Let's start by looking at a brand-new motherboard and PSU. Can you tell me which parts you have in your computer right now?