I have an EVGA 780 and today my computer crashed playing BF1. When I restarted the computer it would not boot to Windows. There were also thick horizontal green lines that showed up right after the BIOS information flashed and before the windows splash screen. The windows splash screen was distorted as well. I could load the operating system into safe mode but not normal mode. In safe mode the green lines were smaller. In safe mode I deleted the driver in the device manager. I was then able to load into windows normally. I then installed a new video card driver. When I rebooted again the system will not go into windows and it would just keep rebooting. I remove the card cleaned it, disconnected the hard drives reinstall the card turned on the computer but I still have the green lines right after the BIOS. I also put a different hard drive and reinstalled Windows to see if I could actually get to the desktop. Everything loaded normally however after I install the video card drivers it again rebooted after the windows splash screen. I've been installed and older video card, a 560 ti, and there were no green lines and everything worked perfectly.

I've attached a screenshot of the green lines that show after the BIOS. Please disregard the text because I move the video card to another slot just to see if the lines disappeared but I did not connect both power cables.

So I'm assuming the card that shot. I do not overclocked it and I am disappointed that the card died so fast compared to other EVGA video cards I've had (4).

Is there anything I can do to salvage this card?

Edit. Having issues uploading the picture. I'll try again later.

The "Please power down and connect the PCIe Power Cable(s) for this graphics card" message is usually associated with A) The card not getting power through the PCIe Supplemental Power Connectors due to a faulty PSU/rail or the cables. B) Internal card failure.
 
There's different versions of Thermaltake Toughpower 850 units, if yours has other PCIe rails/sockets, try them..If your unit came with extra PCIe cables, you could try them too..Stating the model number of your PSU might help.
 
Otherwise, testing the card in another compatible PC or taking it somewhere to have it tested, would be best..Or if you have another PSU, you could try it.
 
Artifacting in the BIOS or before Windows/driver loads is almost certainly a failed card..But the power message is a power issue.
 
That's a tough call..Could either be the PSU, cables, or the card..Process of elimination..Guessing the card has failed though..Performing a forum search for "Green lines" yields a bad card as the result.
 
If the card is bad, or you suspect it is, contact EVGA Support in your region for their take on it and about possibly setting up an RMA..If not under warranty, you can take the thing apart and bake the PCB only with the GPU side up, like this, but again, only with the GPU side up, and hope for the best..Solder cracking on the PCB might be the problem, baking might reflow any cracks that might exist.

I have to add that the card is 3 months out of the 3 year warranty:(

Alrighty then..If you're pretty sure the card is toast, then 385F (preheated) for 10 - 15 minutes with the GPU side up, and hope for the best.

The maker of the video corrected it from 285F to 385F at around the 2:10 minute mark..385F (almost 200C) is correct..I've always just rolled with 200C when baking a card..There's lots of other videos on YouTube too, just search "Bake graphics card"

plasmar
Thank you for the suggestions.

The power issue was because I did not have both power cables connected to the card. I tried moving it to a different slot on the motherboard to see if it made any difference, but you did not.

I will try the bake suggestion, and report back

But did you Ever Connect BOTH Power Cables?

Alright. Good news.  Baking the card fixed it.  I would have never known..
 
Also, on a good note, I went out this morning and got a EVGA 1070 FTW :)