After Installing Video Board, I Can't Post to BIOS Anymore (H97N-WiFi & MSI Radeon R9 380 Armor 2X)

[Triple-S]

I just built a new computer. Specs below. After installing Windows 10 successfully, the computer rebooted. It then said it couldn't locate a bootable device. On the next reboot, the computer would not post to BIOS at all. Just a black screen.

I tried removing the video card and using onboard video. Same result, black screen.

I tried a different video card.

I tried just one RAM chip at a time.

I tried pulling the battery to reset the BIOS.

I tried all of the steps in "Perform these steps before posting..." The one issue there is that my motherboard apparently doesn't have an interface for a system speaker, so that seems to be unhelpful in this situation.

My troubleshooting led me to believe that the motherboard was faulty, so I took it back to the store and exchanged it for the same model. Came home and repeated the build. This time, I left the video card OUT of the system until Windows was successfully installed. I also updated the BIOS to the latest version. After the Windows install, I added the video card. Upon reboot, I got the same old black screen and no BIOS again.

I tried removing the video card and using the onboard video. Again, no change, no BIOS.

I tried resetting the BIOS with a battery pull. No dice.

I am starting to believe that the video card is incompatible with the motherboard. I don't know whether to get a different motherboard, get a different video card, scrap the whole thing, etc. Any advice is appreciated.

First build, BIOS was F7.
Second build, I updated BOIS to F8 BEFORE Windows install.

Specs:
GLite 120 Advanced Cooler Master Case
Gigabyte H97N-WIFI Rev 1.0
MSI Radeon R9 380 Armor 2X
Intel I7-4790K LGA 1150
EVGA DDR3 1600 C9 PC3-12800 8GBx2
OCZ Vertex2 256MB SATA II SSD
Corsair CX750M

 

[bmw-vision]

This has happened to my laptop. Maybe just leave it for a while and see if it decides to boot. I saw someone had to leave it for 30min before it worked.

 

[Triple-S]

This has happened to my laptop. Maybe just leave it for a while and see if it decides to boot. I saw someone had to leave it for 30min before it worked.

I have seen that happen before with older computers (possibly a cooling issue with old thermal paste). I actually went on vacation between the first and second builds, so the first build sat for 5 days before I tried it again. I am pretty confident that adding the video card to this system is triggering the failure.

 

[bmw-vision]

Try unplugging the HDDs and the graphics card, and try booting.
If it still doesn't work, alternate each stick of RAM in the PC (ie: one at a time), with the graphics card and HDDs removed.