BSOD Multiple different errors while gaming

**I tried sending my dmp files to a compressed zip but I get an error message: "File Not Found or No Read Permission and the SysnativeFileCollectionApp.zip says its too large to upload"** (I am the Administrator)

I could use some help guys. My PC will BSOD randomly during graphically intense operations (Gaming even on completely low settings & Youtube Videos being played at 1080p 60fps) When I had my old GPU and it BSOD in the past, the screen would tear so I couldn't see the error. I now have a brand new graphics card that has been tested in another PC and works fine. Although I get significantly more playing time with the new card, I am still getting BSOD. The errors are different almost every time:

Memory_Management
NTFS_FILE_SYSTEM(Ntfs.sys)
KMODE_EXVEPTION_NOT_HANDLED
ATTEMPTED_EXECUTE_OF_NOEXECUTE_MEMORY

After I got the Memory Management error, I switched the RAM to the other two slots, but then got the other three BSODs above. I'm thinking maybe the motherboard?? I hope someone can help.

My setup:

OS: Windows 8.1
CPU: Intel Core i3-3220 3.3GHz Dual-Core Processor
MOBO: Biostar H77MU3 Micro ATX LGA1155 Motherboard
RAM: Corsair Vengeance 8GB (2 x 4GB) DDR3-1600 Memory
HDD: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive
GPU: **OLD**XFX Radeon HD 7850 2GB Core Edition Video Card**OLD** (New: EVGA GeForce GTX 970)
PSU: Corsair Builder CX600M
 
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