My newly build PC won't boot

[LazyJelly]

I just finished building a new pc and after I went to plug in the power cable, only the motherboard lid up and no power went through to other parts.

I went through the cables multiple times and nothing helped. I really need some help.

[LazyJelly]

The specs are 

Asus Rog Strix b760-f WiFi

Etc 3060ti

I5 12400f 

DDR 5 6000mz vengeance 32g 2x

LianLi 120 fans

Samsung m.2 980 2T SSD

4 T hhd

Be quite CPU cooler rock

 

[IgniVellex]

13 minutes ago, LazyJelly said:

The specs are 

Asus Rog Strix b760-f WiFi

Etc 3060ti

I5 12400f 

DDR 5 6000mz vengeance 32g 2x

LianLi 120 fans

Samsung m.2 980 2T SSD

4 T hhd

Be quite CPU cooler rock

 

is your monitor plugged into your gpu? edit: nvm I didn't see the rest of the post lol

[Verrierr]

21 minutes ago, LazyJelly said:

I went to plug in the power cable, only the motherboard lid up and no power went through to other parts.

I'm assuming it lit up after pressing the power button?

 

Why is there a knot of cables in the top left corner?

[LazyJelly]

11 minutes ago, Verrierr said:

I'm assuming it lit up after pressing the power button?

 

Why is there a knot of cables in the top left corner?

BCS the there is only 10 pins up top

[TheyCallMeAFruit]

Take out the GPU, for sanity remove the PCI cables for it from the PSU if it's modular. 
You don't have your PSU listed but maybe some of your pins aren't seated all the way for the CPU power either from the PSU or to the motherboard. 
I see what looks like a loose cable where the CPU power supply goes to to the motherboard. 

This may be an odd question, do you have power to the motherboard before you hit the power button on the PC?

[LazyJelly]

Just now, TheyCallMeAFruit said:

Take out the GPU, for sanity remove the PCI cables for it from the PSU if it's modular. 
You don't have your PSU listed but maybe some of your pins aren't seated all the way for the CPU power either from the PSU or to the motherboard. 
I see what looks like a loose cable where the CPU power supply goes to to the motherboard. 

This may be an odd question, do you have power to the motherboard before you hit the power button on the PC?

My PSU is a SF850L from corshair

And I just took out the whole PSU unit and cables and replug them again to be sure but nothing so far. And no power to the motherboard.

[TheyCallMeAFruit]

3 minutes ago, LazyJelly said:

BCS the there is only 10 pins up top

Perhaps, do you have a 4 and a 6 instead of 4 and 8?

[TheyCallMeAFruit]

3 minutes ago, TheyCallMeAFruit said:

Perhaps, do you have a 4 and a 6 instead of 4 and 8?

Actually looking at your picture, the locking tab for the 8 pin looks like it's on the left of center, I believe it should be to the right of center. 
I checked the included cables, you should have a group of 6 on the right of the 8pin, then the set of 2 on the left of the 8. 

[TheyCallMeAFruit]

You can also test that your power button for turning on the computer is working. 

Unplug reset, power switches from the motherboard and take anything metal and just short the 2 pins for power on. 

[LazyJelly]

Now the it is lighting up but the motherboards is lighting up orange and the screen says no signal 

[TheyCallMeAFruit]

Nice, what was the issue?

Next try using the onboard graphics. See if you can get a display out from there. 

[LazyJelly]

5 minutes ago, TheyCallMeAFruit said:

Nice, what was the issue?

Next try using the onboard graphics. See if you can get a display out from there. 

Tried that and it it did not work.

The motherboard now is light ing orange indicating that there is a problem with the ram but I've switched ram position and it did not solve it. 

 

[LazyJelly]

Update the pc is booting properly 

[TheyCallMeAFruit]

Glad to hear it