I built a PC that was working perfectly until I decided to troubleshoot some RGB case fans. I connected them to the motherboard and some SATA cables, but now the computer won't power on at all. All components, including the motherboard, CPU, and PSU, are brand new. I'm worried I might have damaged the motherboard while trying to configure the fans, or maybe I fried the MSI MEG 850W PSU in the process. It's been frustrating since I want this to work for my girlfriend. Here's what I've tried so far:
1. I removed all extra components and ran just a single stick of RAM in the second slot along with the PSU.
2. I've plugged everything into different outlets.
3. I double-checked all the connections to make sure they're correct.
My specs include a Montech King 95 Pro case, Intel Core Ultra 7 265KF CPU, MSI Z890 Gaming Plus WiFi motherboard, RTX 3090 GPU, and an MSI MEG 850W PSU (which I tested with the paperclip method, but only clicks for a split second and then nothing). I also tried a secondary EVGA 1600W PSU, which passed the clip test, but when connected to the motherboard and CPU, I hear a buzzing noise and nothing else happens. Any insights would be greatly appreciated!
2 Answers
Hey! Just a thought, did you accidentally mix up the cables between your EVGA and MSI PSU? They’re not interchangeable, so that might have caused the issue.
When you mentioned connecting them to the mobo and some SATAs together, can you clarify what you meant? Were you using standard SATA power connectors? It sounds like there might have been a mix-up with connections that could've fried the motherboard. If you can provide more details, it’ll help diagnose the problem better.
The SATA cables were plugged into a hub where all the fans and RGB were connected. I connected the SATA from the case to a power cable going into the PSU. I made sure to use the cables provided by the manufacturer with the first PSU.
Yeah, I switched it to the correct cable. Now I can hear the PSU click, and the RAM light stays on. Not sure if that’s a good sign or not.