sonicflame Posted September 14, 2021 Share Posted September 14, 2021 Last night my previous PSU started making horrible fan noises, so I picked up an RM750x this morning as a replacement. After installation, the PC wouldn't power on at all, but after some troubleshooting (disconnecting everything and then adding things back in one at a time), we found that it's fine with my 2x SATA SSD drives and 2x of my Seagate Barracuda SATA HDDs, but as soon as I connect the third Seagate and try to power on, it simply won't start up. My previous PSU was also a 750W, so power shouldn't be an issue. We've been over the SATA cabling multiple times and can't find anything wrong. Is there something I'm missing? Or another test I can run? Link to comment Share on other sites More sharing options...
Administrators Technobeard Posted September 14, 2021 Administrators Share Posted September 14, 2021 If one PSU works and the other doesn't, then it's probably the PSU. Were all 3 drives on the same cable? What's the PSU model? Link to comment Share on other sites More sharing options...
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