BSOD while playing games

In short, everything freezes during game, sometimes i get BSOD shown, and sometimes nothing but frozen screen. I have found some reports in event viewer, i think one of these could be the cause:

The IP address lease 192.168.1.2 for the Network Card with network address 0xBC5FF405F33C has been denied by the DHCP server 192.168.1.1 (The DHCP Server sent a DHCPNACK message).


-Fault bucket , type 0
Event Name: LiveKernelEvent
Response: Not available
Cab Id: 0

Problem signature:
P1:
P2:
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P5:
P6:
P7:
P8:
P9:
P10:

Attached files:
C:\Windows\LiveKernelReports\WATCHDOG\WD-20130121-2208.dmp
C:\Windows\Temp\WER-2776365-0.sysdata.xml
C:\Windows\Temp\WER644E.tmp.WERInternalMetadata.xml

These files may be available here:
C:\ProgramData\Microsoft\Windows\WER\ReportQueue\Kernel_0_0_cab_0fda647d

Analysis symbol:
Rechecking for solution: 0
Report Id: b22055cb-640e-11e2-9f35-bc5ff405f33c
--------------------------------------------------------------------------------------------------------------------


Fault bucket , type 0
Event Name: BlueScreen
Response: Not available
Cab Id: 0

Problem signature:
P1:
P2:
P3:
P4:
P5:
P6:
P7:
P8:
P9:
P10:

Attached files:
C:\Windows\Minidump\021014-35739-01.dmp
C:\Users\Alen\AppData\Local\Temp\WER-475163-0.sysdata.xml
C:\Users\Alen\AppData\Local\Temp\WEREDA8.tmp.WERInternalMetadata.xml

These files may be available here:
C:\ProgramData\Microsoft\Windows\WER\ReportQueue\Kernel_0_0_cab_0f47ff64

Analysis symbol:
Rechecking for solution: 0
Report Id: 021014-35739-01
Report Status: 0
---------------------------------------------------------------------------------------------------------------------

Fault bucket , type 0
Event Name: BlueScreen
Response: Not available
Cab Id: 0

Problem signature:
P1:
P2:
P3:
P4:
P5:
P6:
P7:
P8:
P9:
P10:

Attached files:
C:\Windows\Minidump\031814-37923-01.dmp
C:\Users\Alen\AppData\Local\Temp\WER-65489-0.sysdata.xml
C:\Users\Alen\AppData\Local\Temp\WERD670.tmp.WERInternalMetadata.xml

These files may be available here:
C:\ProgramData\Microsoft\Windows\WER\ReportQueue\Kernel_0_0_cab_0d33e7bf

Analysis symbol:
Rechecking for solution: 0
Report Id: 031814-37923-01
Report Status: 0
-----------------------------------------------------------------------------------------------------------------

Fault bucket , type 0
Event Name: BlueScreen
Response: Not available
Cab Id: 0

Problem signature:
P1:
P2:
P3:
P4:
P5:
P6:
P7:
P8:
P9:
P10:

Attached files:
C:\Windows\Minidump\032614-37939-01.dmp
C:\Users\Alen\AppData\Local\Temp\WER-70855-0.sysdata.xml
C:\Users\Alen\AppData\Local\Temp\WERFD51.tmp.WERInternalMetadata.xml

These files may be available here:
C:\ProgramData\Microsoft\Windows\WER\ReportQueue\Kernel_0_0_cab_0ccd0f8a

Analysis symbol:
Rechecking for solution: 0
Report Id: 032614-37939-01
Report Status: 0
-----------------------------------------------------------------------------------------------------------------

Fault bucket , type 0
Event Name: LiveKernelEvent
Response: Not available
Cab Id: 0

Problem signature:
P1:
P2:
P3:
P4:
P5:
P6:
P7:
P8:
P9:
P10:

Attached files:
C:\Windows\LiveKernelReports\WATCHDOG\WD-20130121-2108.dmp
C:\Windows\Temp\WER-6414168-0.sysdata.xml
C:\Windows\Temp\WERF1EE.tmp.WERInternalMetadata.xml

These files may be available here:
C:\ProgramData\Microsoft\Windows\WER\ReportQueue\Kernel_0_0_cab_0c1df1ee

Analysis symbol:
Rechecking for solution: 0
Report Id: 53cd38af-6406-11e2-9780-bc5ff405f33c
Report Status: 0

-------------------------------------------------------------------------------------------------------------------

Fault bucket , type 0
Event Name: BlueScreen
Response: Not available
Cab Id: 0

Problem signature:
P1:
P2:
P3:
P4:
P5:
P6:
P7:
P8:
P9:
P10:

Attached files:
C:\Windows\Minidump\031814-41433-01.dmp
C:\Users\Alen\AppData\Local\Temp\WER-77017-0.sysdata.xml
C:\Users\Alen\AppData\Local\Temp\WERF259.tmp.WERInternalMetadata.xml

These files may be available here:
C:\ProgramData\Microsoft\Windows\WER\ReportQueue\Kernel_0_0_cab_098f03a8

Analysis symbol:
Rechecking for solution: 0
Report Id: 031814-41433-01
Report Status: 0