How Can I Connect an RTX 3090 FE to a Corsair RM1000X Shift?
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MapleOrbit47
My RTX 3090 Founders Edition uses NVIDIA's proprietary 12-pin connector and came with an adapter that ends in two standard PCIe 8-pin plugs. However, the Corsair RM1000X Shift uses smaller Type 5 modular connectors, while the GPU adapter appears to use larger Type 4 connectors. Can I safely use this setup with an adapter or replacement cable, or do I need a different power supply?
Answers
The graphics card’s included adapter is intended for ordinary PCIe power cables, but its PSU-side plugs are not compatible with the RM1000X Shift’s smaller Type 5 sockets. A Type 5-to-12-pin cable or another officially compatible Corsair cable is the right solution. Modular PSU cables are not universal, so avoid using a Type 4 cable from another Corsair unit or any cable that merely looks similar.
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The RM1000X Shift’s included PCIe cables should be used, but the modular ends must match the PSU. Since the 3090 FE adapter has the larger Type 4-style PSU connectors and the Shift uses Type 5, don’t try to force the connectors together or mix modular cables. Use a Corsair-approved Type 5 cable made for connecting the PSU to an NVIDIA 12-pin/12VHPWR GPU connector, if your PSU included one or Corsair lists one as compatible. Otherwise, buy the correct replacement cable rather than replacing the whole PSU.
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SilverPine6: The 3090 FE itself does not use the newer 12V-2x6 connector, so make sure the cable is specifically compatible with the original 12-pin GPU socket. The important part is matching the RM1000X Shift’s Type 5 PSU side.