I've just installed a Corsair Nautilus 360 AIO cooler in my setup, but now my PC refuses to boot. My motherboard is an ASUS ROG Dark Hero VIII, and I keep getting the error code 0d, which usually relates to CPU problems. I've checked the CPU, and it's functioning well, so I suspect it's related to the new cooler.
Initially, I connected the pump to the AIO_PUMP header and the radiator to the CPU_FAN header. After consulting the cooler's manual, I switched them, but neither setup worked. I've gone through every possible connection arrangement I can think of. I even reset the CMOS battery as part of my troubleshooting efforts. Any suggestions for resolving this issue? I'm feeling pretty stuck and defeated right now.
3 Answers
Have you tried reseating the AIO cooler? Sometimes, just making sure everything is secured properly can solve these weird boot issues.
That error code typically points to a problem with RAM initialization, but since you’re sure the CPU is okay, it might be a mounting issue. When you swapped coolers, did you remove the CPU? If so, check for any bent pins, as that could cause issues. Sometimes it can just be uneven pressure or even too tight pressure on the CPU. I’d recommend unplugging the pump and fans to see if the system can boot without them connected. Most likely, if the CPU is still seated correctly, it shouldn’t be an issue with the fan connections.
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