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CPU Fan Not Working

MRPINK80
  • 10 months ago

New build on 11/17/18. X470 Taichi, Ryzen 2700X stock spire CPU cooler. All working perfectly since build until yesterday. Computer won't boot. All RGB comes on ram/case fans etc. CPU cooler fan will not spin. Switched CPU fan to water pump fan connector still nothing. Switched to Chassis/water pump connect fan runs and comp boots. Case fans run when plugged into CPU header no problem. I have cleared the CMOS checked all connectors. Any ideas what my problem is? First build in 10 years so i'm not very savvy on diagnosis. Thanks for any help in advance.

Comments

  • 10 months ago
  • 1 point

If it won't boot, try each RAM stick in each motherboard position to make sure it's not bad RAM or a bad ram slot. Make sure the CPU is properly oriented and installed with no bent pins. Is the CPU power from the PSU connected? are all the motherboard to PSU and case cables correctly installed? If all else fails you may have a DOA motherboard.

  • 10 months ago
  • 1 point

Its been running for 4 months no problem. It will boot and run fine if I use the CPU water pump fan header on the MB for the CPU Fan connector. If i use the regular CPU FAN header the fan will not spin and it won't boot at that time . Should i update the bios? I am using the first version since everything has worked fine since initial build. Thanks

  • 10 months ago
  • 1 point

Flashed the bios to the newest and so far so good. Very strange this just happened out of the blue.....Solved all my fan curve issues as well. Lesson learned update the damn bios. I listened to advise of the MB manf which said don't update if everything is working. Oh well.

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