Try running DDU, and then re-install your drivers. If you're still getting crashing, test with another game or 3D benchmark like 3DMark or Unigine Heaven/Valley.
 
Some users have reported that bumping the power target or voltage up slightly can reduce the TDR errors with this game. For others, a slight underclock of 75 to 100MHz helps.
 
 

Hey man just wanted to inform you that I have/had the same problem on a 980 SC with windows 8.1 and an intel 4670k. I'd get grey screens when playing games like LoL and Marvel Heroes. I even RMA'd my card because I thought it was an issue with the cards (which still might be I'm not sure). What I did to fix it was to use DDU to uninstall the latest drivers because they are the issue! You need to install an older set of drivers. The one installed was 345.20. I didn't test another one before 347.52, I just jumped back to the ones I felt comfortable with in the past. 
 
It's definitely not your computer or your psu! EVGA needs to either get together with Nvidia to fix this issue with the latest drivers or push out a bios update. And it's not isolated to the SC edition either, there's posts on these forums from a person getting grey screens with a Classified.

Doing an update: I installed drivers 347.25 which are one driver behind 347.52. Been playing for about 6-8 hours now and they're perfect. No issues whatsoever, far better performance than the 345.20 drivers! I haven't tried installing the new 347.88 drivers that released today but when I do I'll give another update

deuce985

Xaolin99
Doing an update: I installed drivers 347.25 which are one driver behind 347.52. Been playing for about 6-8 hours now and they're perfect. No issues whatsoever, far better performance than the 345.20 drivers! I haven't tried installing the new 347.88 drivers that released today but when I do I'll give another update

Please do report back. I have the exact same problem on an EVGA ACX 2.0 980. I started playing it about a month ago and would get these solid color screens causing my drivers to crash. I would sometimes need to reboot my PC. It's the ONLY game that does it and I did benchmarks/memory tests. Everything is okay. Play games much more graphically intense and no problems there either.
 
I reverted back to older drivers and it still didn't fix the issue for me but I didn't use the cleaner thing suggested above. I actually manually remove all registries myself. I don't trust third-party software to sweep my system clean of drivers, sorry.
 
Anyways, let me know if the new Nvidia driver fixes the issue. The only thing I haven't tried for a fix is underclocking my GPU which is a last resort. I haven't tried the 347.25 drivers yet either. I did try the ones from several months ago because the SWTOR forums recommended it. Was the one on November 18th didn't fix my problem. If you do a Google search you'll see this is quite a common problem and they all seem to be on EVGA cards. What's up with that EVGA?
 
Windows 8.1
16GB RAM
i7 4790k
ASUS Z97 Mark 2 Sabertooth
EVGA ACX 2.0 GTX 980
MX100 SSD

Ok so as a followup, I have installed the new 347.88 drivers and have been playing for 3 hours now with no issues. Usually when I got the grey screen it was about from the time I started a game to 1 hour of play time. Nothing is happening and performance is as good as can be. Obviously 3 hours isn't nearly good enough to claim the drivers are good so I'll report back at night about 10 hours from now

I've not installed the new drivers as they don't say anything about having dealt with such an issue.  My issue is in Elite Dangerous and is described in this thread: http://forums.evga.com/GTX-980-SC-ACX-20-WhiteBlack-Screen-With-Sound-in-Elite-Dangerous-m2309128.aspx
 
Does this sound similar?  I'm going through all the old drivers one by one to see if I can find one that works for me.
 
Thanks.

Well, Elite Dangerous (Frontier) developed their own engine so it's not unique to Bioware/EA as maligned as they normally are. :)
 
If you've read over my post I think you'll see if exhausted virtually any possibility it's anything other than the drivers working with the programming of the game.  I'll give the new driver a shot and keep an eye on this thread.  Thanks!

Xaolin99
So as for the 10 hour playtime update I promised, after extended periods of playtime on the game Marvel Heroes I didn't notice anything out of the ordinary in game. My game did freeze twice however, which has happened before on all sorts of drivers and I'm not sure if it's the game or the cards. When the game froze it gave me a "driver has stopped working" error message which is the first time I've seen one after a freeze. Normally I'd be able to press ctrl+alt+del and escape to go back to a working game but this time it gave me the message and a longer pause to get the game to work again.
 
Another very strange thing to note that I've never seen happen before but occurs on these new drivers. When I quit out of a game completely and then use an already opened window of google chrome, it refreshes the screen. Highly strange and I'm completely considering going back to the 347.25 drivers as those were functioning without these strange issues. 
 
More importantly NO GREY SCREENS! Drivers 347.52 were definitely the problem and should be avoided for those with issues concerning grey screens. Idk about other colored screen issues but they may be due to an exterior problem outside of driver issues. That doesn't mean to say that drivers wouldn't be the cause but could be a contributing factor. 
 
My plea is that EVGA work out a BIOS solution so that new drivers don't cause more problems on EVGA hardware

I actually played SWTOR yesterday without any grey screens on the new driver too. I did get 1 freeze as you mentioned above but I think it was related to the game because that's the first time I saw it not crash my driver. Hopefully these drivers fully resolved the issue but we'll see...only way to know for sure is extended hours for several days.

New, 347.88 drivers do not fix (Elite Dangerous).  Now resorting to downclocking.  If anyone has a suggested utility/method that works and is straightforward, I'd like to hear about it.  Looked for it in Precision X briefly - hate that interface.  Used a somewhat recent copy of MSI Afterburner.  What's your best method?
 
Thanks.

The UI in Precision, if I may, really sucks.  Thanks for the GPU CLOCK OFFSET clue.  Now, how do I save it to a profile and how do I make a default profile and how do I launch Precision when I boot? 
 
I'm sure this will get sorted out.  They don't want us to all ship our cards back insisting on refunds/different products!

Just wanted to update this thread for those having similar problems in Star Wars The Old Republic(SWTOR). The fix I've found for this game is as EVGA suggested in a post above...underclock your GPU. It's simple if you don't know how just download the EVGA Precision X software and click the GPU Offset Clock to -100mhz. Not a single crash since. You right click the bottom numbers to save profiles. If this is the only game crashing like it is for me then just make sure you go back to the default clock playing a different game. I think EVGA sent me a lemon because it's likely SWTOR was the only game exposing the unstable factory OC on my ACX 2.0. I'm debating whether to go through the RMA process but seeing as it doesn't do it any other game...it's just an inconvenience to RMA right now for me. It's hard to pinpoint if it's the game or EVGA but I'm leaning to the GPU because other people have the same GPU without problems in the game.
 
I've only done 1 Operation since downclocking but that's where my crashes happened the most. I'd crash 3-4 times in 30 minutes while just randomly doing FPs throughout the day I'd get 1-2 crashes. Not a single crash in the Operation I did, WZ or FPs all throughout the past week. My suggestion is RMA your card and see if you got a lemon. Downclocking a GPU that fixes all your crash issue in the games directly points to a bad GPU. Regardless, I can't run it at their advertised speeds so it should be RMA anyway.
 
I'm a little disappointed in EVGA. Their CS is still great and they have good RMA policies but it seems their quality control is going down a bit. It seems they got on top of the world in the PC community and now they're letting quality control suffer. My last GPU had problems with them and now this one. I have no doubt I'll be RMAing eventually because it's unstable at default OC settings. First the 970 issues, coil whine and now this. Seems to be a common problem on Google. EVGA might want to look into their quality control departments and see what's going wrong with their OC cards.
 
I do appreciate EVGA's post above as it helped me. Thanks and good luck to the rest of you.

Crimson AL
I went back to 347.25 because I was having similar issues....no problems since.

Crimson were you experiencing grey screens? I also used 347.25 when my card had grey screens and it fixed it. My new card came in from the RMA 2 weeks ago and it fixed the issues on all the drivers so I'm confident it's an issue with the card itself

Mine runs fine on default clocks. No issues (Except in Far Cry 4 with random freezes, but that could be the game). Any slight overclock and I grey screen/freeze on low utilization games. While I can loop heaven at +100/400. Something is fishy with these maxwells. Though the SC is already factory OCed and runs stuff great on default, so I shouldn't complain much.

Received the second RMA replacement GPU and the game's been playing flawlessly since.

i have a gtx 980 hybrid, im also getting this, the first time it happened, this screen simply died, but what was odd is that my second screen was still running fine. Now im getting either grey screens or pinkish red screens, but swtor is still running fin in the back ground. im on the latest drivers and due to the fact its only crashing one screen which the game is upon i dont think its a problem with the card but is in fact a driver issue.
 
 So what eta do we have for this tobe fixed ?

put in the rma to the support team, but what i want to know is how does the rma work, do they send out a gpu and then you send back the one thats faulty or what, because ive already sold my 780's and cant go without my pc.
 
 Edit, update, i finally got a prec x that works, god knows whats up with the new one, currently running 4.2 fine. But did a test as others have suggested and downclocked the card by 52 mhz and bang, it works fine, so its defo the card. And for a card that is watercooled as standard and has been shown to have the ability to majorly overclock it i find it rather unbelievable that these cards got past quality control when they have to be under clocked to actually work.