I just installed a Cooler Master MWE GOLD 850W V2 Full Modular PSU, but when I try to turn on my system, nothing happens. I've double-checked all connections to make sure they're secure, including PCI-E, CPU, motherboard, SATA SSD, and fan hubs. Everything seems to be seated properly, so I'm stuck on what to try next.
2 Answers
Don’t forget to check the power button header on the motherboard. Sometimes it feels like everything is connected, but that little header could be the problem!
Make sure you've connected both power connectors on the motherboard: the 24-pin and the 4-pin or 8-pin near the top left. I've built tons of PCs and still sometimes forget to plug that one in! It could be what's causing the issue.
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