Mobo doesn't turn on

[Buksika11]

Hi! So my pc was working til a few days ago when I switched cases, since then it didn't turn on. What I tried:

Having a ram stick, 24 pin and 8 pin connected to the mobo (with and without CPU/GPU) and shorting the power on thing on the mobo with a screwdriver, didn't boot. No fan, no psu no nothing. 

I read that when this fails it's a dead mobo so I bought a new one, it doesn't turn on either with same method. The GPU gets power from both mobo cuz the pins LED light up that it's not connected (red, and when connected it's white). 

I thought maybe the psu is at fault, but it turns on with the "clip" Thing where I connect the power pins in the 24 pin thing (green and black) so it's fine, and to be sure I tried with an old PC and it powers it. Even if I plug a case fan into the mobo that doesn't start either. I tried every trouble shooting I could find online... 

My setup :

Mobos: b450 tomahawk (old) and tomahawk max (new) 

GPU:Strix 1080ti

ram: aorus RGB

psu: evga 650 GQ 

 

thanks for the answers 

[eeeee1]

lmao do you have your front io connected properly? 

[Buksika11]

I'm trying to turn it on out of case, so no it's not connected, cuz its not in a case

[Buksika11]

5 minutes ago, eeeee1 said:

lmao do you have your front io connected properly? 

I'm trying to turn it on out of case, so no it's not connected, cuz its not in a case

[eeeee1]

13 minutes ago, Buksika11 said:

I'm trying to turn it on out of case, so no it's not connected, cuz its not in a case

describe to me how you are doing this

[Buksika11]

11 minutes ago, eeeee1 said:

describe to me how you are doing this

I think it's easier to show a picture

As for the process: I turn the psu on, short the power on thing on mobo, and it does nothing, psu doesn't turn on either 

[eeeee1]

run one of those psu tests. don't know how to describe it but saw one when i got my psu troubleshooted by geeksquad

[Buksika11]

1 minute ago, eeeee1 said:

run one of those psu tests. don't know how to describe it but saw one when i got my psu troubleshooted by geeksquad

I did, if you mean the clip thing with the pins. Plus I used this Same psu to power another system a few hours ago, so it shouldn't be the psu