Sound Loop and freeze, crashing to black screen after ctrl+alt+delete

For someone who isn't tech savvy you sure added a lot of technical details that most people wouldn't even know exist, such as the voltage and temp readings. I applaud you for that!
(update: but you didn't specify what OS you were using!)


That being said, did you do a complete driver uninstall before you upgraded your new video card? You should _-'ALWAYS'-_ do a complete uninstall of your video card drivers before you upgrade. This applies to all situations, whether you are upgrading from AMD to nVidia (or vice-versa), or in your case, upgrading the model, and even if you are just updating to new drivers. Any time you update or upgrade any hardware, it is not just a good idea to completely remove all of the software and drivers, but for some (video cards especially) it is critical.

So the first thing I would do is do a complete uninstall of all of your drivers. You can do this by going to the Windows Control Panel and clicking on "Uninstall a program" under the "Programs" category. On the list that comes up, make sure you uninstall EVERYTHING nVidia. That includes any PhysX and/or 3DVision drivers and programs. If you uninstall one thing and it asks you to reboot, but you still have more to uninstall, say no.
Once you have everything uninstalled, reboot your PC. Personally, I like to shut it down completely for 30 seconds to a minute or so, just to make sure that there is nothing lingering in a cache somewhere or something, but you can just do a regular reset if you want. Once you have rebooted, the screen may look crazy stretched out, or have some text blurred or other strangeness - hold back your compulsion to go fix the resolution and all that, and instead go straight to installing the new driver software like normal. Once it installs, you will need to reboot again. This time you can just do a regular reboot, no need for a cold boot (powering all the way down).
This time, it should be back to normal looking, but you should still go into your nVidia control center and customize the settings to your liking. Don't over (or under) clock anything on the video card yet. Leave everything the way it is, and try and start one of the games that gave you problems.

If this works right off the bat, YAY! If you still get a black screen, then there is a trick I know for getting back into Windows without a restart. On the C+A+D screen, select "Task Manager". You will more than likely still go right back to the black screen as if nothing happened, but.... something did. You need to push alt+tab until you get to the task manager. Then, even though the screen is still all black, and it looks like you cant control anything, you should still have control of the mouse, even though you cant see it. Move it around until you get it over the task manager on the taskbar, and hover over it. This will cause the task manager to focus on the screen (you have to make sure Aero Peek is enabled. This is only for Windows 7-8.1), and once it does, push the down arrow key until you are highlighting the process of the game that is hanging. Then, push ALT+E.
Boom, back to desktop.

Another thing you can try is to alt+tab to the game that's running and giving you problems and push ALT+F4. That is a "Force Kill Task" command shortcut for Windows, but in situations like yours it doesn't always work. Still, you should try it first.

Hopefully you won't need to do any of this in the future, but if you are still having problems after this, I will do what I can to narrow the problem down. To me it sounds like a driver issue, so I am pretty confident that doing a clean driver install will fix your woes. Good luck!!

Are you sure you have the graphics card in the correct PCI-E slot? You could have it in an X8 or X4 slot, when it really needs to be in an X16.
I am going to be gone for a while, so I won't be able to answer back for a bit. But try a few more games, maybe some less demanding ones. See what your performance is like, and check your temps while your card is being stressed (there is a good program called Open Hardware Monitor that you can use, or an even better paid program called AIDA64 that can give you a wealth of info about every little piece of your entire rig). I would also look for some benchmarking software that might be able to diagnose what is going on with your texture bandwidth. Also, are you still having the Ubisoft issues? And are you using Steam for The Crew? You have to use Origin for Crysis 3.... have you tried disabling the in-game overlay for both of those programs? In Steam it is under Steam>Settings>In-Game, then uncheck the box for the IGO. In Origin it is pretty much the same.... Origin>Application Settings>Origin In Game, then uncheck the box.
Just for the hell of it, knock on wood and reboot your machine, see if ANY of that helps. This whole thing could also be caused by your card getting REALLY hot.

When all is said and done, you may just have a bad card. My first card on my current rig went bad after 2 months, but it took another 2 months for the company to send me a replacement. Yeah, it sucks as bad as it sounds. lol