Question Newly build pc won’t boot but works the day before.

[Raiju]

I just build a new pc but it wont boot, i have asrock b360 gaming k4 as motherboard which has led build on motherboard. When i try to plug the power cable the motherboard led lights up but fan is not spinning and it won’t boot. I tried repluging it, tried different psu (i got 2 psu that is working on other pc so i’m sure psu is not the problem) i also tried 2 gpu’s that is working on other pc. I also check pins on cpu also put thermal paste. Oh and by the way on the first day i build it i have no ram so i tried to boot it without ram and it works fine, desktop speaker beep’s, fan spins, etc then the day after i bought a RAM and install it, it becomes like that, i also tried booting it without ram now but still fan and speaker desktop wont work now. Any tips or do you think it’s a motherboard issue? Sorry if i describe it so long.

 

[SgtScream]

There are diagnosic LED lights on some motherboards. Check your manual and find out if one is lit.

 

[Raiju]

*i did’nt put thermal paste on pins you might misunderstand my sentence. I put thermal paste ofc on the right place.