Motherboard cant start the CPU fan

[Mecatr0nico]

I have an Asus z170 Pro Gaming Aura Motherboard, and a Corsair H100i v2 cooler for an i7 6700k cpu. Some time ago I found in the morning the CPU over heating at close to 100º and all the fans running at maximum, I believed that the pump had failed and so I took it out of the system for RMA and ordered a Cooler Master Hyper 212x to use in the meantime, but when I installed the coolermaster I discovered that the PC would not boot, when I try to power on the PC the fan will try to spin just a little and stop and the PC will refuse to start. If I start the spin with my finger and then turn the PC on, it will stay spinning and I can use the PC without problems. Do you have any idea of what is happening? Maybe there is not enought power on the CPU Fan plug in the motherboard?

 

[the nerd 389]

Is the motherboard still under warranty?

Also, what other parts are in the build?

 

[Mecatr0nico]

Is the motherboard still under warranty?

Also, what other parts are in the build?

Thanks for the answer, unfortunately even though the motherboard is still in the warranty time I dont think I can get ASUS to honour it, becouse I asked a friend to bring it to me from a travel to another country, and I dont have the receipt, so I cant send it back for the original country and I dont think ASUS Brazil will want to help me, if all else fails I can try of course.
My build is bellow:
CPU = Intel I7 6700K
Motherboard = Asus z170 Pro Gaming Aura
CPU FAN = Corsair H100i v2 (Now is a Cooler Master Hyper 212X)
GPU = Asus GTX 1070 Strix
RAM = Corsair Vengeance DDR4 3000Mhz - 16GB(2x8)
Asus ROG Front Base
PSU = Corsair CX650m
HD Seagate Barracuda 2TB
SSD: kingston uv400 240gb
WiFi Adaptor: Tp-link TI-wn781nd
Blu-ray Burner LG
Windows 10 (last update)
Case: Corsair C70 with 2 front fans and one bottom fan as input and one rear fan as output (the two fans on the H100i use to be at the top as outputs for a total of 3 in and 3 out)

 

[the nerd 389]

Go into BIOS and make sure the CPU_FAN header is set to PWM control. Once that's done, go into the Q-Fan settings and switch to a profile with a higher minimum fan speed. Alternatively, you can go into manual mode and set the curve to go from 40% at a CPU temp of 50C to 100% at a CPU temp of 70C.

If that doesn't fix it, set that fan to maximum speed.

If it still doesn't work, either your motherboard is bad, or you accidentally plugged the CPU fan into the CPU_OPT header.