6-month old PC Windows 7 64-bit, BSOD

[Jollster]

6 Month old PC Windows 7 64bit, BSOD. (help appreciated)

Hi Folks,
my PC has been running great for the last 6 months, however now whenever I try and launch a 3D game the PC will hit a BSOD within 5-10 minutes of launch.

So far I've:
up to date with windows updates
updated the BIOS to latest
memtest'ed the RAM - passed
tried running with just one DIMM
updated to the latest video drivers
installed the latest direct X
chkdsk'ed - no problems

I'm out of ideas now, so would really appreciate so help.

Included dxdiag and last 5 minidumps

Thank You!

--------[ Summary ]-----------------------------------------------------------------------------------------------------

Computer:
Operating System Windows 7 Professional 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.120330-1504)
DirectX 11

Motherboard:
CPU Type Intel Core i7-3930K 3.20GHz (Sandybridge-E) Socket LGA2011 Processor - OEM
Motherboard Name Asus P9X79 PRO Intel X79 (Socket 2011) DDR3
System Memory Corsair Vengeance 16GB (4x4GB) DDR3 PC3-12800C9 1600MHz DualQuad Channel Kit (CMZ16GX3M4A1600C9)
PSU Corsair Enthusiast Series TX750M High Performance 750W '80 Plus Bronze' Modular Power Supply (CP-9020003-UK)

Display:
Video Adapter - Gainward GeForce GTX 560Ti "Phantom" 1024MB GDDR5 PCI-Express
Monitor HP x23LED Series Wide LCD Monitor [NoDB] (CNC025P6Y3)

Multimedia:
Audio Adapter High Definition Audio Controller [NoDB]
Audio Adapter High Definition Audio Controller [NoDB]

Storage:
IDE Controller Asmedia 106x SATA Controller
SCSI/RAID Controller Intel(R) C600 Series Chipset SATA AHCI Controller
SCSI/RAID Controller Marvell 91xx SATA 6G Controller
OS HDD Crucial RealSSD M4 128GB 2.5" SATA 6Gbs Solid State Hard Drive (CT128M4SSD2)
Data HDD Samsung SpinPoint F3 1TB SATA-II 32MB Cache - OEM (HD103SJ)
Blue Ray Drive Samsung SH-B123LRSBP 12x BluRay ROM DVDRW DL & RAM Lightscribe SATA-II Optical Drive


Partitions:
C: (NTFS) 121874 MB (71210 MB free)
D: (NTFS) 953866 MB (837515 MB free)
Total Size 1050.5 GB (887.4 GB free)

Input:
Keyboard HID Keyboard Device
Keyboard HID Keyboard Device
Mouse HID-compliant mouse
Mouse HID-compliant mouse

Network:
Network Adapter Bluetooth Device (Personal Area Network) #2
Network Adapter Intel(R) 82579V Gigabit Network Connection (192.168.1.74)

Peripherals:
Printer Fax
Printer Microsoft XPS Document Writer
USB2 Controller Standard Enhanced PCI to USB Host Controller [NoDB]
USB2 Controller Standard Enhanced PCI to USB Host Controller [NoDB]
USB Device ASUS Bluetooth
USB Device Generic USB Hub
USB Device Generic USB Hub
USB Device Generic USB Hub
USB Device USB Composite Device
USB Device USB Composite Device
USB Device USB Input Device
USB Device USB Input Device
USB Device USB Input Device
USB Device USB Input Device
USB Device USB Root Hub
USB Device USB Root Hub

 

[Tmagic650]

No bug check string, and you should be running DX11. This is a problem with your Nvidia video driver. Do you have the latest?

 

[Jollster]

No bug check string, and you should be running DX11. This is a problem with your Nvidia video driver. Do you have the latest?

Thanks for your reply Tmagic, yes I do have DX11 and my Nvidia drivers are the latest.
Could it be a hardware fault with the gfx card?

 

[Tmagic650]

Are you overclocking?

 

[Jollster]

nope
edit: not knowingly anyhow

 

[Tmagic650]

The minidumps are all the same, so essentially you only had one. What is the make and model of your motherboard? Are you running an SSD? How are the hard drives set up? IDE, AHCI, SATA 3?