New PC build - Black screen

[ganons]

Hi

I built a PC last night and I get black screen only, doesnt show bios or option to go into it. Everything powers up even the keyboard.
I have:
i5 6400 CPU
2x8GB DDR4 Ram
Asus H110i-Plus motherboard https://www.asus.com/Motherboards/H110I-PLUS/ (new from Amazon)
650w Fractal PSU
1TB HDD without OS
Zotack 1060 GPU

I reseated the CPU and Ram and tried 1 Ram stick on both slots. Tried the HDMI on the board and GPU, also tried without GPU. I know the components work as I had to return an MATX board and that went into BIOS and an older HDD with OS)

So what can I do?

 

[gondo]

Make sure both power connectors are connected to the motherboard. The Normal larger ATX one plus the 8 pin or whatever it is one near the CPU Fan header. This is a common problem...some people forget the smaller aux ATX power connector.

Make sure your monitor is set to the right input, HDMI/DVI/etc...

Other that that it looks like you did everything right. If all else fails, try powering the board out of the case. You may just have a dead motherboard.

 

[ganons]

Make sure both power connectors are connected to the motherboard. The Normal larger ATX one plus the 8 pin or whatever it is one near the CPU Fan header. This is a common problem...some people forget the smaller aux ATX power connector.

Make sure your monitor is set to the right input, HDMI/DVI/etc...

Other that that it looks like you did everything right. If all else fails, try powering the board out of the case. You may just have a dead motherboard.

I did connect all atx power pins and the additional 4 on the otherside. Monitor only has HDMI x2.
How would it be dead mobo if everything switches on?

 

[ganons]

Can the motherboard be faulty although everything is booting from it?

 

[gondo]

Sure the board could be dead. It could also be the PSU that's not powering it up properly.

 

[ganons]

Fixed! It was a bent pin in the bottom left corner.

 

[gondo]

Bent pin on what? The power connector on the motherboard? Bent pins used to be popular on the CPU but now they use copper pads and got rid of the pins.

 

[ganons]

In the cpu socket

 

[gondo]

Pretty common. Gotta insert the CPU carefully not to bend any pins.