When the computer shuts down, these fans and MOBO settings remain active without needing input.
When the computer shuts down, these fans and MOBO settings remain active without needing input.
You just got a new motherboard and CPU to boost your setup. After installing everything and swapping the CPU and board, power came on but the fans started spinning and the red LED near the CPU indicator lit up. You connected the power cable without turning on the PC. Your monitor usually doesn’t get a signal, but sometimes it does—allowing you into BIOS where the CPU is detected. Once you try to bypass BIOS, the signal disappears and it fails after reboot. Switching back to your old parts worked perfectly. I suspect an issue with your current motherboard. I’ve checked for bent pins on the CPU, but everything looks fine. There’s a solid red LED next to “CPU” on the board. You’re new to PC building—hopefully you didn’t damage anything and that a BIOS flash might help. Your PSU is rated 600-650 watts gold, which should cover your upgrade. Your current rig runs an i5 6500 with GTX 1060, while your new build uses a Ryzen 5 2600 with the same graphics card.
1. Red LED labeled "CPU" among four diagnostic lights indicates a possible CPU issue. If it activates and remains lit randomly, it suggests the motherboard is detecting an anomaly. Consider reinstalling your CPU.
2. Case fans should only operate when the system is powered on. Inspect the 24-pin PSU cable and verify proper connection.
3. Attempt a BIOS reset or clear CMOS to resolve startup problems. Also, check for firmware updates. I upgraded from an i5 3570K to a Ryzen 3600 + B450 Tomahawk MAX, encountering unusual boot issues like failure to boot Windows after shutdown and missing input signals. My solution is pressing the reset button right after turning on the PC (press power then immediately press reset), which has resolved the problem so far.
You're facing an issue where Windows 10 isn't installing properly, even though you've tried various fixes and ordered replacement parts. It seems the problem might be related to the operating system itself. The instructions suggest a full reinstallation may be necessary for it to function correctly.