Coffee Lake system showing black screen on boot with graphics card

May 10, 2018
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Hi all,

I've just upgraded to a coffee lake setup consisting of the following

  • i5 8400
    Gigabyte H370m d3h
    8GB G.Skill RipJaws 4 DDR4-2666 DIMM CL15

The system works alright. But when I put in my Graphics card (1060 6GB G1 Gaming), the screen remains black, no POST visible. SSD activity indication makes me assume that windows is booting invisibly, though.

What I've tried so far:
* latest bios upgrade
* setting PCI express to Gen3 explicitly rather than letting the bios decide
* Using the x4 PCI-e port
* Using a different Power plug to power the GPU
* double-checked that the HDMI output Jack is working by putting the card back into my old build.

I'm running out of ideas...Do you have any?
 
May 10, 2018
2
0
10
It seems that this is something specific to the Mainboard. In the mainboard's setup, i had to enable UEFI compatibility support mode (CSM). Now my graphics adapter works.