[SOLVED] case fans stops spinning after boot

[Break16]

Hello,

I recently had a problem with my PC chase fans and I hope someone can help me?

It is about the 2 x Fractal Design front mounted 140 mm chase fans- 1000 RPM / DC12V - 020A fans 3 pin.

When I turn on my computer the chase fans start to spin, but after about 5 seconds they stop spinning. I also have tried to play some games with the hope the fans will start spinning when the computer is getting hot.

The fans are connected to the mainboard and both go to the "SYS_FAN6_PUMP"

My other 2 fans / 1x rear & 1x top are working fine.

computer data:

CPU: AMD Ryzen 7 3700x
Motherboard: Gigabyte X 570 Aorus Pro
Working memory: G. SKILL Ripjaws DDR4 / 32GB
Graphic: NVIDIA GeForce RTX 2080 Super
Power supply: be quiet Dark Power Pro 11
Fan: 4 x Fractal Design 140 mm - 1000 RPM / DC12V - 020A Fan 3 Pin
Hard drive: Samsung 970 Evo 1 TB - M.2

 

[Lutfij]

Did that splitter come with the case? If so, try connecting each fan individually to the board(while the system is powered down) before powering back up. Also, what cooler are you using?

 

[Break16]

okay I will try

chase fans: Fractal Design Dynamic X2 GP-14 Whiteout Edition
cpu cooler: be quiet! Dark Rock Pro 4

 

[helpstar]

the fans will need 4V to start spinning, adjust your fan profile, eventually set the fan speed from normal to manual mode

Which BIOS version is installed on the motherboard?

Set the control mode in smart fan 5 to "voltage" instead of "AUTO"