Dragon Age Crashing, Hard Shutdown

I got the exact same situation, played for nearly 30 hours straight without any issues, no crashes whatsoever and now it suddenly makes my PC crash, forcing a reboot. Doesn't matter on which settings, doesn't matter if I disable overlays, admin rights won't work, updated all drivers, checked temps, nothing is higher than 65C and so on.

Not so chuffed about this, was having a lot of fun and now it's literally unplayable.

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System Information
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Time of this report: 11/29/2014, 15:42:07
Machine name: KEVIN-PC
Operating System: Windows 7 Home Premium 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.140303-2144)
Language: Dutch (Regional Setting: Dutch)
System Manufacturer: System manufacturer
System Model: System Product Name
BIOS: BIOS Date: 08/20/10 14:20:54 Ver: 08.00.15
Processor: AMD Phenom(tm) II X6 1090T Processor (6 CPUs), ~3.2GHz
Memory: 8192MB RAM
Available OS Memory: 8190MB RAM
Page File: 6405MB used, 9972MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.01.7601.17514 64bit Unicode

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DxDiag Notes
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Display Tab 1: The file nvd3dumx.dll,nvwgf2umx.dll,nvwgf2umx.dll,nvd3dum,nvwgf2um,nvwgf2um is not digitally signed, which means that it has not been tested by Microsoft's Windows Hardware Quality Labs (WHQL). You may be able to get a WHQL logo'd driver from the hardware manufacturer.
Sound Tab 1: No problems found.
Sound Tab 2: No problems found.
Sound Tab 3: No problems found.
Input Tab: No problems found.

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DirectX Debug Levels
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Direct3D: 0/4 (retail)
DirectDraw: 0/4 (retail)
DirectInput: 0/5 (retail)
DirectMusic: 0/5 (retail)
DirectPlay: 0/9 (retail)
DirectSound: 0/5 (retail)
DirectShow: 0/6 (retail)

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Display Devices
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Card name: NVIDIA GeForce GTX 660 Ti
Manufacturer: NVIDIA
Chip type: GeForce GTX 660 Ti
DAC type: Integrated RAMDAC
Device Key: Enum\PCI\VEN_10DE&DEV_1183&SUBSYS_36633842&REV_A1
Display Memory: 2751 MB
Dedicated Memory: 3008 MB
Shared Memory: 3839 MB
Current Mode: 1920 x 1080 (32 bit) (60Hz)
Monitor Name: LG E2240(Analog)
Monitor Model: E2240
Monitor Id: GSM57A3
Native Mode: 1920 x 1080(p) (60.000Hz)
Output Type: HD15
Driver Name: nvd3dumx.dll,nvwgf2umx.dll,nvwgf2umx.dll,nvd3dum,nvwgf2um,nvwgf2um
Driver File Version: 9.18.0013.4480 (English)
Driver Version: 9.18.13.4480
DDI Version: 11
Driver Model: WDDM 1.1
Driver Attributes: Final Retail
Driver Date/Size: 11/21/2014 02:22:07, 19966536 bytes
WHQL Logo'd: No
WHQL Date Stamp: None
Device Identifier: {D7B71E3E-52C3-11CF-724A-6E161CC2C435}
Vendor ID: 0x10DE
Device ID: 0x1183
SubSys ID: 0x36633842
Revision ID: 0x00A1
Driver Strong Name: oem115.inf:NVIDIA_SetA_Devices.NTamd64.6.1:Section035:9.18.13.4480😛ci\ven_10de&dev_1183
Rank Of Driver: 00E02001
Video Accel: ModeMPEG2_A ModeMPEG2_C ModeVC1_C ModeWMV9_C