No signal on monitor

So, I finally pulled the trigger on a brand new PC setup, grabbed two monitors and an adapter to get everything hooked up, but now when I try to fire it up, my screen is just staring back at me with that dreaded "no signal" message. Has anyone dealt with this kind of nonsense before? Any idea what might be causing this headache?

If you want us to actually be able to help you out, go ahead and drop your full system specs here. Also—just a quick question—are you plugging that DVI cable directly into the motherboard or into the graphics card (assuming you've got one installed)?

Boeing 737, r9 270, 4 GB of RAM, a GA 970 DS3P with a 500 GB SATA hard drive... I even had to throw a graphics adapter on there just to get things moving.

So, just to be clear—when you boot up the computer, are you getting absolutely nothing on the screen? Like, it’s just totally black the whole time? Does your monitor have both VGA and DVI ports, or just one? I ask because on my setup, if I manually set the input to VGA through the monitor's menu while I'm actually plugged in via DVI, I won't see anything at all. I have to manually switch it back to DVI so the monitor detects the signal and finally shows an image. Maybe give that a shot first.

Another possibility—and this might sound a bit technical—is that the PCI-e x16 slot isn't enabled in your BIOS settings. If that's disabled, it would prevent the graphics card from working entirely.

And a third thing to consider: you might have just received a faulty graphics card, or perhaps the adapter itself is a dud. 🤷 It's hard to say for sure without testing, though. If you can, maybe try swapping in a different card just to see if that changes things...

Take it back to where you bought it; there are several possibilities for what went wrong.
Did you bump the tower or something? Maybe the GPU isn't seated properly in the slot anymore.
A PC isn't a 70-ton tank. You need to handle it with care,
more than you clearly have.

So I finally dragged it over to the repair shop guy, and he tells me straight up that the fans aren't spinning the way they should—like, they're just constantly stalling out or not getting enough juice. He’s gonna try swapping in a different graphics card to see if that clears things up.