Have you destroyed your new power supply unit?
Have you destroyed your new power supply unit?
Hello! I appreciate your trust and would love some insight on this situation. I’m planning a couple of small improvements: first, I’ll purchase a new midi tower, and second, I’ll get a fresh PSU for my PC tower. I bought the Kolink Observatory HF Glass ARGB Gaming (White) which came with many fans. For the PSU, I selected the Corsair RM750e ATX12V v3 750W—just for comparison, I currently have a Corsair VS550. After removing my old motherboard and installing the new one, I connected all the power cables correctly and flipped the PSU switch. I noticed RGB lights on the motherboard, which means power is flowing properly—good news! Then I pressed the power button, but nothing happened except a faint "pft" sound, a burning odor, and a slight smoke from the PSU. Ugh, panic set in. I feared I’d destroyed my whole system. Luckily, swapping out the new PSU back in and using the old one confirmed only the new one was faulty; everything is now working perfectly. So far, I think I’ve done things right.
What went wrong? I’m curious about a few points:
1) Did I mix up the connector types on the front panel—maybe it should be + to - instead of - to +? Could that trigger a power failure when I pressed the power button?
2) My new fans are all linked together and use a SATA power cable. But with the old PSU, I thought one fan wasn’t connected properly, so I connected its 4-pin (or 3-pin?) adapter to the motherboard fan slot—even though it was already getting power. Did that overload it and cause damage?
Other thoughts:
- I’m not very confident with fans, so I might have misjudged the power supply.
- Everything else seemed fine—no RAM or CPU removed, connections stayed consistent across both setups.
I hope these observations help clarify what happened. Please share any advice or corrections you think would be useful. Thanks a lot!
you're asking why you need that specific 750w psu with am4 and 6650xt—probably because those parts don't match your setup. It sounds like the issue is likely with the unit itself, not the components. If everything matches between both psus, it's probably a faulty part, so report it and get a replacement from Corsair.
Thanks, I've completed the return process with the seller. I'll request a refund and remain with my current PSU because it doesn't seem necessary to upgrade anytime soon until I find something better.