My Power Supply Made a Loud Noise and Sparked – Should I Be Worried About My PC?
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TechSavvyPenguin42
I had a bit of a scare just now when my aging power supply (around 10 years old) started buzzing loudly. I quickly turned off the multi-outlet and unplugged the PSU. When I tried to plug it back in (definitely a mistake), the multi-outlet popped and sparked brightly, releasing a toxic smell. I turned everything off again and disconnected the power supply from the rest of my PC components. Now, I'm worried about whether my PC components are damaged since the system was off when the outlet blew. I'm getting a new PSU delivered tomorrow, but I could use some advice on what to check and whether I should be concerned about my other parts taking damage.
Answers
Make sure to inspect the capacitors on your motherboard for any bulging. Check for scorch marks too. If everything looks fine and there's no burnt smell (other than the PSU), you should probably be okay. I’ve had PSUs fail catastrophically, but it didn't mess up my motherboard.
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That really sucks! What model is your PSU? We might need to give it some shade for blowing up after all these years! 😂
TechSavvyPenguin42: It's an InWin Power Rebel RB-S450, 450W. I guess it’s my fault for not replacing it sooner—it’s been over 10 years.
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The biggest risk from a PSU failure is that it can send mains power through the low voltage rails into your PC. You won’t know for sure until you try powering it up with the new PSU. If you're really worried, try removing your SSD, GPU, and any other expensive parts, then power it on with just the essentials. I had something similar with a UPS frying my PC's PSU, but some of my gear survived.
TechSavvyPenguin42: That’s a good plan! Luckily, I still have all my old parts from when I upgraded a few years back, except for the SSD and HDD, which hold all my data. I definitely should’ve thought about getting an external SSD for backups.
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TechSavvyPenguin42: The motherboard looks good with no damage or bulging capacitors, so I’m hoping the SSDs and HDDs are fine as well. I’ll update after I get the new PSU!