Fitzgerald Posted August 22, 2022 Share Posted August 22, 2022 I have an ASUS ROG Maximus z690 Formula motherboard and a Corsair HX1200i power supply. The cables from the power supply are not keyed to match the two 4+4 power sockets on the motherboard. The motherboard is keyed as follows, looking down at the socket with the latch at the top. (x indicates a square pin, o indicates a rounded pin.) top row o x x o bottom row x o o x I have tried the "CPU" and "PCIe" cables that came with the power supply: they did not fit. Clearly, I'm missing something obvious. Any ideas? Link to comment Share on other sites More sharing options...
LeDoyen Posted August 22, 2022 Share Posted August 22, 2022 you need to use the CPU one obviously the 8 pin side goes to the PSU the 8 pin that separates in 4+4 goes to the motherboard. Link to comment Share on other sites More sharing options...
Fitzgerald Posted August 22, 2022 Author Share Posted August 22, 2022 Thanks, LeDoyen, for the quick relpy. The problem is that the keying on the "CPU" cable is (looking toward the motherboard socket): top row o o x o bottom row o o o x and it doesn't seem to match the keying of the socket on the motherboard. Link to comment Share on other sites More sharing options...
LeDoyen Posted August 23, 2022 Share Posted August 23, 2022 that's the correct keying for the CPU sockets. They should fit since the rounded connectors fit in square holes. but the latch is on the top, not the bottom which is very annoying If you tried to fit it in the position that makes sense from a human (thumb down, latch down) it won't fit.. But from a motherboard engineer perspective (break your wrist, and bleed on that VRM heatsink, thumb up, latch up) it fits. Link to comment Share on other sites More sharing options...
Fitzgerald Posted August 23, 2022 Author Share Posted August 23, 2022 Thanks again. I wasn't sure about the round pin fitting in the square hole but I was sure about the blood on the heat sink. Now I'm on my way, thanks to your advice. Cheers. Link to comment Share on other sites More sharing options...
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