780 ti causing video output problems. Possible incompatibility w/ BIOS/mobo?

[Zephiran]

Build:

i7-4790k
ASUS Z97-Pro AC
2x Crucial Ballistix Elite 8GB
Cooler Master Seidon 240M
Cooler Master V700 PSU
EVGA GTX 780 Ti
250 GB Samsung Evo SSD
1TB WD Black HDD
Pioneer BDR
Windows 7 Ultimate

When the graphics card is connected: I can’t get video output from ANY source (onboard VGA/dual-link DVI-D/HDMI or GPU’s dual-link DVI-D/HDMI). From the moment the computer boots, there is nothing onscreen. There is still a video output depending on the source, but the screen is just empty. I can tell Win7 has still loaded from the sound it makes though.

When the graphics card isn’t connected: Video will only output via VGA, with no/blank output from HDMI/DVI. On my first try, disabling and reenabling the Intel graphics driver for the integrated graphics allowed for video output through HDMI, but that only happened once. Apparently there’s an obscure issue with DVI and recent Intel integrated graphics. I’m not sure if there’s also an incompatibility between the motherboard and graphics card, but given how new they both are I wouldn’t assume that to be the issue.

Steps I’ve taken to address the issue: Checked proper mounting of GPU in PCIe & PSU connections. Tested each of the aforementioned video outputs on a couple of monitors that supported each input. Tried to disable safe boot in the UEFI bios but I think Windows 7 prevents me from doing so (safe boot is enabled by default). Uninstalled the intel graphics drivers so there wouldn’t be a conflict. Changed boot settings from UEFI to legacy where I could. Tried to force use of PCIe for graphics rather than onboard, but this always seems to be reverted to “Automatic” every time I check the BIOS again. Manually updated the BIOS to the most recent version.


TL;DR: Video outputs aren’t working properly, minus VGA w/out GPU. Installing the graphics card will give me no video output. Issue is very similar to http://www.hardwarecanucks.com/forum/troubleshooting/66454-new-gtx-780-ti-no-video-signal-need-help.html

 

[clutchc]

Don't feel I'm insulting you, but I have to ask to be sure. You have remembered to move your monitor's video cable from the integrated output ports to the new gfx card's output ports, right?

 

[Zephiran]

Don't feel I'm insulting you, but I have to ask to be sure. You have remembered to move your monitor's video cable from the integrated output ports to the new gfx card's output ports, right?

NP. When the graphics card is plugged in, I've tried every output on both the motherboard and discrete GPU that I have access to, and adjusted the input on each monitor. In each test case, I isolate the cable between the appropriate inputs (yes). No images on anything when the GPU is plugged in.

 

[clutchc]

It's not too surprising that the on-board video is disabled when there's a card in the PVIe x16 slot. That can be a function of the BIOS. But the new card's outputs should work when connected to the monitor. However, if the card is defective, it can cause the on-board to shut down as well. Do you have another gfx card to try?