brand new Skylake build doesn't boot

[swapjim]

The hardware:

VGA: Asus H170-Pro
MOBO: Intel i7-6700
RAM: Crucial Ballistix Elite 16GB Kit (8GBx2) DDR4-2666 UDIMM
BLE2C8G4D26AFEA (from what I've checked in their website, the RAM is compatible with the mobo)
PSU: 550w

The process:

I plug and connect just the basics: CPU, RAM, power, the power switch of the case, a PS/2 keyboard, and a monitor (the CPU has an iGPU).

I power it up. The CPU fan starts spinning, the NUM lock led on the keyboard can turn on and off, but I see nothing on the display. It stays in power saving mode.

The display is a CRT monitor with a VGA connector. I have confirmed that this monitor works. The motherboard has a VGA port.

I plug an ATI VGA on the PCI-e slot but leave the dedicated VGA power disconnected. I use a DVI-to-VGA adaptor and connect the display to the ATI card. I power it up. The ATI card fan has decorative leds. They lit up, but again, no signal on the display.

What am I doing wrong?

 

[Burpo]

Do you have the 8 pin EATX CPU power plugged in? Are you putting the RAM sticks in the lighter colored slots?

 

[swapjim]

The RAM sticks are in the lighter colored slots.

This is the diagram of the motherboard:

There are two connectors indicated with 1:

a. EATX12V, at the top, and
b. EATXPWR, at the right side

I am supposed to connect both of them? I only connected (b).

 

[Burpo]

Yes, the top 8 pin has to be connected also.

 

[LTC8K6]

You must connect EATX12V as well.

 

[balloonshark]

Can you change the input on your monitor? My new Dell monitor didn't work until I manually set the input source (displayport in my case).

 

[LTC8K6]

Can you change the input on your monitor? My new Dell monitor didn't work until I manually set the input source (displayport in my case).

Well, he already posted that he did not plug in the extra 12V connector...

 

[Burpo]

Yeah, they don't run without power to cpu :\

 

[swapjim]

I connected the extra 12V power and it worked! I just finished the whole assembly and installing the OS.

Thanks a lot guys. You saved the day!

 

[Burpo]

How's that saying go? If at first you don't succeed, read the instructions? lol

 

[swapjim]

Haha! I did had the mobo manual in my hands but somehow I missed the fact that I had to connect both. I got confused when I couldn't find where in my (very first modular) PSU the 8pin connector would start. That, and the fact that the last assembly I did was 8 years ago

 

[nerp]

Double check your RAM slots. There was an error in the manual for these ASUS boards. The instructions to ensure dual channel is activated were wrong.

I solved the problem by filling all 4 RAM slots.

 

[swapjim]

Double check your RAM slots. There was an error in the manual for these ASUS boards. The instructions to ensure dual channel is activated were wrong.

I solved the problem by filling all 4 RAM slots.

But it works fine now.