Bought the EVGA 980 Ti SC edition and have been getting Blue Screens while gaming from day one.  I've been using it for 4 days.  I have been trying to trouble shoot the system since.
 
I read the mini dump files and it's caused by driver ntoskrnl.exe.  So then I enabled verifier and it still points to ntkrnlmp.exe.  Bug Check 109.
 
I ran the Windows memory tool and it said no problems with the RAM.  I then booted to Memtest86+ and no problems with RAM (3 passes ~3 hours).
 
Windows 7 x64 Ultimate
I7 2600k 3.4Ghz (Auto-Clocked Performance by Motherboard to 4.4Ghz)
Asus P8P67 WS Revolution
8GB Corsair RAM
1200W Corsair PSU
Dell U3014
OCZ Vertex 2 SSD
 
Been running a Hardware monitor and all temps far below max (41C Processor Max, 77c 908Ti Max, 45C Mboard Max).  CPU is under a waterblock.
 
Upgraded from ATI 6950 Crossfire where I did have 3 crashes the days before upgrading that were related to DirectX and over-heating (excess of 90c on GPU).  AMD was removed with just the CCC uninstall, but verifier still lists their drivers as present.  I have since down-clocked the system and considered running a driver sweeper, but the dump files have never pointed to that being the problem.  System never Blue Screens unless playing a game.
 
Would I get a ntoskrnl.exe blue screen from an issue with the 980 Ti ram?  Also, why does CPUID only say the card has 4GB instead of 6 and a 405Mhz Core and Shader clock?  The System information in the Nvidia control panel is accurate at 6GB. 
 
Thanks for any insight.
 
 

Hrm...
 
Now I get a boot up error saying nvspcap64.dll is missing or invalid.  This is the Nvidia Audio Driver.  The Gforce Experience and 3d still show up in add remove programs, but aren't there to actually launch.  DDU encountered errors removing both the AMD and Nvidia drivers and said to send the log to devs.  I re-installed under custom settings and only selected the Physx.  Now it's off to try and crash my system.

No crashes in two days.  I am hoping this trend continues.  I will put up with the missing Nvidia sound .dll in exchange for no blue screen.  I will try to overclock the processor again and pin point it down to drivers or clocks.  I did run the Intel test on the processor and it's clear.
 
I am thinking the motherboard overclocked the RAM with the processor because the timings looked off in CPUID.  The strange thing is the motherboard has overclocked the system for 2 years and there wasn't an issue until installing the 980Ti.  I will go with a manual clock if one week goes by without a crash.  I haven't touched the factory over-clock of the Ti.

did you reseat the videocard? May not be making proper contact with the pcie slot.