I recently built a new PC and upgraded my power supply from an EVGA G3 550W to a Corsair RM750e. The new PSU only has 4-pin SATA connectors, but my Corsair H100i RGB PRO XT AIO requires a 5-pin connector to power the RGB on the CPU block. I tested my old 5-pin SATA power cable from the EVGA PSU, and it worked with the Corsair PSU. I'm worried about the long-term safety of doing this. Should I continue using it, or is it risky? I also found a new PSU with a 5-pin connector, but I'd prefer not to redo all the cabling if possible.
2 Answers
Just to be blunt: if you're using an old modular cable with a new PSU, that's a big no-no. Even if it works now, it can cause electrical problems that might damage your components in the long run. Definitely consider getting that 5-pin PSU. It’ll save you headaches down the road!
SATA power cables are designed to be standardized, so there shouldn’t typically be a difference in pin counts. However, mixing cables from different PSUs can be risky due to potential incompatibilities. I'd recommend sticking to the cables that came with your new PSU to avoid any issues in the future. If you're concerned, it might be worth getting that new PSU with the 5-pin connector to ensure everything’s safe.
Yeah, I’d also go with what’s safe. Better to swap cables than risk damaging your hardware.
Totally agree. Play it safe with the right cables—it’s just not worth the risk!