Capacitor issue in power supply following missed posting incident.
Capacitor issue in power supply following missed posting incident.
My power supply failed right after my computer crashed and couldn’t reach the BIOS screen. I unplugged the GPU and hard drives, tried to start it again, but it exploded as well—there was a smell of something burning. I’m not sure if this is just weather damage or if another part broke before the PSU failed. I don’t see any signs of burns on the motherboard, and I don’t have spare parts to test. As a university student, my budget is very limited. Still, I think I could build a completely new PC and save up to -300 by the end of the year. I’m wondering if it’s worth buying a PSU just to check if this was the real issue, or if everything else is fine. Also, I’d like some advice on whether buying second-hand GPUs would be a good idea now that there’s been so many used cards in the market, probably used for mining. Thanks!
It’s useful to check if the parts function properly before proceeding. I recommend either purchasing a used power supply and testing the existing components with it, or buying a reliable new one that meets your needs so you can test your old parts afterward. Once everything works, focus on whether you truly need a new computer and how much money you have available. For instance, you might upgrade to a better CPU and GPU, then sell the older components. Your mainboard should be compatible with newer CPUs after updating the BIOS.
we understood the issue isn't about the power source failure itself. if i try using a fresh supply and it still breaks, the key is to identify the cause.
Electrolytic capacitors often fail due to age, harsh conditions such as high temperatures or high-frequency currents, making them unsuitable for their intended use or exposed to excessive voltage. In most PC power supplies, they typically fail by exploding, cutting off power, but without overvoltage in the output, the system still functions. Even if components are damaged, they usually won’t work with other units, and a short circuit would simply shut down the new supply. At least it’s not a very inexpensive or poor-quality unit. By the way, what kind of power supply was this and how long has it been?