New Build - no post

[Terrier_Jimlad]

Put the following together today ...

EVGA SuperNova G3 850W 80 Plus Gold Modular Power Supply
Samsung 960 EVO Polaris 1TB M.2 2280 PCI-e 3.0 x4 NVMe Solid State Drive
Corsair Hydro Series H100i v2 Extreme Performance Liquid CPU Cooler (CW-9060025-WW)
MSI GeForce GTX 1080Ti Gaming X OC 11264MB GDDR5X PCI-Express Graphics Card
Corsair Vengeance RGB 32GB (4x8GB) DDR4 PC4-25600C16 3333MHz Quad Channel Memory Kit (CMR32GX4M4C333)
Asus ROG Maximus IX Code Intel Z270 (Socket 1151) DDR4 ATX Motherboard
Intel Core i7-7700K 4.2GHz (Kaby Lake) Socket LGA1151 Processor - Retail

But I cannot get it to post or get to BIOS. The two symbols on the mobo remain as 00 which don't resemble an error code as far as Asus are concerned. The mobo powers up along with the fans and the h100 pump and fans and it all kicks in to life power wise but no display.

Things I've tried so far:

1) Taken it back down to 1 stick of RAM, rotating it in each slot - no change on any stick or slot
2) Graphics Card out, back to on-board - no change
3) Removed the M.2 SSD - no change
4) Tried a different PSU (HX1000) - no change
5) Cleared CMOS using the clear CMOS button on the back
6) Reseated CPU and checked for pin damage, all ok - no change
7) Stripped entire rig back to bare bones and built on desk - no change

Pointing towards CPU or motherboard? RAM isn't officially on the supported list because of the RGB aspect but the non-RGB version is so assuming these should be fine.

As it stands now, its purely the motherboard, CPU, and one stick of RAM - nothing else.

Can anyone think of anything else to try?

Thanks

 

[Hagar]

It is a long shot but I had errors with a ROG crosshair build (mainly unwanted reboots but also no display). The problems were fully resolved with a new CMOS battery. Even though the board was new and the battery was showing 3.1V in HWmonitor. For a couple of quid, worth a try before you RMA kit.

 

[Quartz]

I'm not sure I'm reading step 7 correctly, but have you tried the motherboard outside of the case?

And perhaps a silly question, but are you sure the problem isn't with the video cable or the monitor? Is the monitor stuck on the wrong input?

 

[laddy]

Minimal build - ram, no need to have vga, unless no on board. Make sure all your connections are correct! psu to mb, cpu fan, and your all them fiddly i/o connectors

clear cmos and remove battery with psu off! Wait a min and then try - good luck