Unable to successfully boot with dedicated graphics card installed.

Juiced012

Prominent
Aug 6, 2017
2
0
510
Due to an accident that fried my older motherboard, RAM, and left my processor too old to fit into a motherboard slot, I just recently began replacing parts of my gaming PC. So far, I have purchased the following:

Define C mid-tower case
i5-7600k CPU
Gigabyte GA-Gaming B8 motherboard
2x4gb sticks of DDR4 2400mhz RAM
750W corsair bronze PSU
Corsair H50 liquid CPU cooler
Sandisk 240gb SSD


I installed these along with some parts leftover from my previous build:

Gigabyte r9 280x rev 3.0 (GV-R928XOC-3GD)
1TB HDD
(Unsure of the make)

After assembling these parts, and powering through some minor issues solved by installing some bios updates, I put a fresh install of Windows 8.1 (What I had on the previous system, I'm going to upgrade it as soon as I have a stable setup) onto the SSD. Now, I've run into another snag.

With the GPU installed, the PC boots through the bios loading screen, and into a black screen. During this time, I can hear what I would assume to be the PSU revving it's fan, along with all of my case and GPU fans spinning at a speed that seems normal. The monitor will continue to pick-up some kind of display input until I hold down the power button for a couple seconds, after which power leaves the PC as it would normally. I hypothesize based on these observations that the PC is correctly running, but the graphics card is failing to provide display data to the motherboard, or through my DVI cable to the monitor.

While troubleshooting my previous issues I had, before updating the bios firmware and chipset, I was able to boot into my OS momentarily with the GPU connected, before losing display in a fashion similar to what happens when I turn on the PC now, so I know that, in some capacity, the GPU is functioning.

I have attempted to clear the cmos on the motherboard, I have checked all my plugs to make sure nothing is unplugged or plugged in incorrectly, I've tried disabling the Integrated Graphics in bios, I have tried using a different PCIE slot on the motherboard, I have tried reinstalling Windows, I've tried another PCIE GPU, and I've I tried looking for an incorrect bios setting.

Currently, I am typing from the working computer, minus a dedicated GPU. The computer runs as one would expect it to when it is operating only off of Integrated graphics. When I attempt to install the GPU's drivers so that I can re-seat the GPU after, I get an install error.

I am running out of troubleshooting options. At this point I am considering the possibility that I have a faulty motherboard, but I'm posting all of my troubleshooting in hopes that there is something simple I missed that may prevent me from having to replace it. It's been a pretty frustrating week for me, I'd really appreciate any advice you guys might have.