Question New motherboard wont post

[animateit431]

So i bought a new motherboard which is z270 tomahawk gaming(mb is used but 100 but working fine) , becuase my mother oard is broken, when i insert everything cpu and cpu fans which is cooler master dual fan i only have 1 cpu fan in the motherboard so i decided to put the other fan in pump fan1 , well the motherboard turn on with no problem , the problem here are 2 things

1 : there is 1 fan only who is running at full speed the other one turn on than off for few second than turned on again but slow

2: the main issue here is the when i turn on the motherboard , the led dram and cpu are cycling between each other , on and off and off , i checked everything , i cleared cmos still no post , or atleast keeps cycling , what is the issue here?

Cpu : i7 6700k
Ram: teamforce 8gb ram
Psu:cougar xtc 500
Nvme m.2 256
Cpu fan : cooler master, corsair dual fan

Anyhelp would be really appreciate , best regard

Solution : i know im commenting this for my self but i can save some lives in the future, what i did is , i went to bios and enabled xmp cuz it was disabled and it seemed for now problem solved

 

[animateit431]

Ok i fixed the issue , it turned out i have to change the ram slot to fix it and it worked , only when i try to put dual channel it doesnt work ,any idea ?

 

[animateit431]

Any suggestion of why the dual does not work ? Ok so to be more specific i have a different model with same speed and latency
Tfroce 3200 cl 16 18 18 35
Viper 3200 cl 16 18 18 38
Is this the case ? Even tho i used it before with my broken motherboard ( before it break ) it worked fine before