Pc wont start but motherboard leds are up

[underzone9]

Hey guys!
So I decided to build a new pc.
The components are:
Asus B150M Pro Gaming motherboard

Asus geforce Gtx 1050ti

Ddr4 G.Skill ripjaw rams (2×4gb)
Intel I5-7500

I assembeled the pc but I cant get it to start
Any ideas

 

[nitinvaid20]

Leds are up means motherboard is getting power but not turning on becouse of CPU i dont think the 7th gen CPU are supported by that board on manufacturer site it only shoes 6th gen CPU