My new motherboard ( no boot GPU fan doesn't spin power supply fan doesn't spin)

[msalbarbary]

Hello,
I have this PC:
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Motherboard Asrock z270 killer sli
Ram CORSAIR Vengeance LPX 8GB (2x4GB)
GPU ASUS GeForce GTX 1080 8GB ROG STRIX
Power supply Corsair RMx Series, RM750x, 750W
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No display, power supply fan doesn't spin, GPU fan doesn't spin. All motherboard light and GPU fans are working.
Please help me...

 

[Dark Lord of Tech]

What CPU?

 

[msalbarbary]

What CPU?

Intel i5 7500u

 

[msalbarbary]

No Any answer ?????!!!!!!!!!!!!!!!!!!!!!!!!