Kernel-Power ID 41 , Category 63 , Keyword 2 while playing games

Started having this problem yesterday , while I was playing AC3 , the screen itself just turns black and everything is unresponsible , and after a few seconds , the PC restarted itself.

Here's the data :
___________________________________________________________
- System

- Provider

[ Name] Microsoft-Windows-Kernel-Power
[ Guid] {331C3B3A-2005-44C2-AC5E-77220C37D6B4}

EventID 41

Version 2

Level 1

Task 63

Opcode 0

Keywords 0x8000000000000002

- TimeCreated

[ SystemTime] 2014-07-30T03:45:16.042804500Z

EventRecordID 31095

Correlation

- Execution

[ ProcessID] 4
[ ThreadID] 8

Channel System

Computer Monster-Machine

- Security

[ UserID] S-1-5-18


- EventData

BugcheckCode 278
BugcheckParameter1 0xfffffa801247e010
BugcheckParameter2 0xfffff880054667a0
BugcheckParameter3 0xffffffffc000009a
BugcheckParameter4 0x4
SleepInProgress false
PowerButtonTimestamp 0
___________________________________________________________________________

SPECS of my PC :
Gigabyte X79-UD3 Motherboard
Intel i7 4820k Processor
Cooler Master Hyper 212 EVO Processor Cooler
EVGA GTX 760 4GB w/ACX Cooler Graphics Card
Corsair Vengeance 16GB Ram (8GBx2)
Corsair CX750 Power Supply
Seagate Barracuda 3TB
119 GB SSD
Corsair 760t cases
*I dont know if this is needed*
2 Logisys Sunlight LED Stick
3 Cooler Master LED Fan

Please help me with this , and the crash dump file is attached , thanks!

*Bump*
Update : It crashes when I was surfing the web too , someone please give me an answer
Update : Had a "Display driver has stopped responding and has recovered" while surfing web

Someone please help me! Is my power supply not enough? Is my Graphics Card faulty? What could it be..?
Help me