Question Cpu and gpu fan not working.

Dec 29, 2019
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My CPU and GPU fan works fine right after I turn on my PC.
But after the PC boot, one of my CPU fan (inhale) stop spinning (I'm using Noctua NH-u12a) and the exhale fan works fine.
It also happens to my GPU fan, stop spinning after the PC boot.
I tried to update my bios but it didn't help.


my spec
AMD Ryzen™ 9 3900X
Gigabyte X570 AORUS ELITE WIFI ATX
ADATA XPG SPECTRIX D60G 32GB (2 X 16GB) DDR4 3200MHZ C16 RGB — TITANIUM
Toshiba DT01ACA300 3TB 7200rpm 3.5
ADATA XPG SX8200 Pro 1TB PCIe Gen3x4 M.2 2280
Gigabyte GeForce® RTX 2080 SUPER™ GAMING OC 8GB GDDR6
Thermaltake Toughpower GF1 850W 80 Plus Gold TT Premium Edition Fully Modular
Noctua NH-U12A 120mm Premium CPU Cooler with Two High-Performance Quiet NF-A12x25 PWM Fans
How can I fix this problem?
 

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