Need help! First PC Build, mobo and gpu has lights, but the case's led and fans wont start whenever I press the power button.

Alvin Neo

Commendable
Dec 31, 2016
7
0
1,510
This is my first time building a PC, and I followed tips and all the guides mostly from youtube videos and followed the all of them step by step. And I plug the AC power plug and switch on the power, the mobo and gpu has lights indicating that it is being powered. But I am unable to get all the fans to work (pre-installed fans in the case - Tecware Titan, bought it for great value), including the Corsair H100i v2 liquid cooler that I've just bought from Amazon. And when I press the power button on the case, nothing happened, LED light on the case is not lighted up also... any idea?
 

Alvin Neo

Commendable
Dec 31, 2016
7
0
1,510


https://www.amazon.com/MAXIMUS-VIII-HERO-ALPHA-Motherboards/dp/B017RI8UYA

https://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Dcomputers&field-keywords=6700k+

its hero alpha, i7-6700k

yes, I connected the 8pins cpu and 24pins mobo power connectors, the mobo led lights up whenever I switch on the power, so is the gpu, but the all the fans (3 pre-installed fans and 2 liquid cooler fans H100i v2 is not powered), and whenever I press the power button, no LED light is shown from the case
 

Alvin Neo

Commendable
Dec 31, 2016
7
0
1,510


I see, any idea for the Corsair H100i v2?