Windows 7: BSOD when loading games

Hi,
I need help here. My pc have been getting bluescreen when i loading the games. it didnt happen before. it happen just after i remove all the components from the case because i make some new painting on my case. after painting is done, i reinstall all the components, turn it on and it works fine except when loading the games. i play codbo, skyrim, w.o.t..is it possible causing by graphics card failure?Please help me figure out the problems.





Here are the problem details:

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7600.2.0.0.256.1
Locale ID: 1033

Additional information about the problem:
BCCode: 116
BCP1: 85E884C8
BCP2: 970B7BC6
BCP3: C000009A
BCP4: 00000004
OS Version: 6_1_7600
Service Pack: 0_0
Product: 256_1

Files that help describe the problem:
C:\Windows\Minidump\121112-8533-01.dmp
C:\Users\FirdausDurius\AppData\Local\Temp\WER-15319-0.sysdata.xml

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HEllo fey86.

Install Service pack 1.
Learn how to install Windows 7 Service Pack 1 (SP1)
Service Pack Center - Microsoft Windows

For bugcheck 116, follow the guide: STOP 0x116: VIDEO_TDR_ERROR troubleshooting