BSOD After using computer for hours

Hi guys,
I am new here. For a 2 month, i was trying to stop BSOD. It happen after using computer for more than 2 or 3 hour. When i check with Bluescreenview, i got that- dxgkrnl.sys driver making the problem. so i need help from you guys.


Importent:- It happen after using computer in normal for more than 2 hour and it happen in 1 hour when i try to play games

here is the dumb file:-

Code:

==================================================
Dump File         : 050414-17109-01.dmp
Crash Time        : 5/4/2014 1:39:29 PM
Bug Check String  : 
Bug Check Code    : 0x00000116
Parameter 1       : ffffe000`038af4d0
Parameter 2       : fffff800`02442dfc
Parameter 3       : ffffffff`c000000d
Parameter 4       : 00000000`00000003
Caused By Driver  : dxgkrnl.sys
Caused By Address : dxgkrnl.sys+fef58
File Description  : 
Product Name      : 
Company           : 
File Version      : 
Processor         : x64
Crash Address     : ntoskrnl.exe+14dca0
Stack Address 1   : 
Stack Address 2   : 
Stack Address 3   : 
Computer Name     : 
Full Path         : C:\Windows\Minidump\050414-17109-01.dmp
Processors Count  : 2
Major Version     : 15
Minor Version     : 9600
Dump File Size    : 587,720
Dump File Time    : 5/4/2014 1:50:30 PM
==================================================

==================================================
Dump File         : 050414-14640-01.dmp
Crash Time        : 5/4/2014 1:25:01 PM
Bug Check String  : 
Bug Check Code    : 0x00000116
Parameter 1       : ffffe000`02fc7010
Parameter 2       : fffff800`0248adfc
Parameter 3       : ffffffff`c000000d
Parameter 4       : 00000000`00000003
Caused By Driver  : dxgkrnl.sys
Caused By Address : dxgkrnl.sys+fef58
File Description  : 
Product Name      : 
Company           : 
File Version      : 
Processor         : x64
Crash Address     : ntoskrnl.exe+14dca0
Stack Address 1   : 
Stack Address 2   : 
Stack Address 3   : 
Computer Name     : 
Full Path         : C:\Windows\Minidump\050414-14640-01.dmp
Processors Count  : 2
Major Version     : 15
Minor Version     : 9600
Dump File Size    : 429,128
Dump File Time    : 5/4/2014 1:25:59 PM
==================================================

==================================================
Dump File         : 050414-23078-01.dmp
Crash Time        : 5/4/2014 1:18:09 PM
Bug Check String  : 
Bug Check Code    : 0x00000116
Parameter 1       : ffffe000`00b03010
Parameter 2       : fffff800`02428dfc
Parameter 3       : ffffffff`c000000d
Parameter 4       : 00000000`00000003
Caused By Driver  : dxgkrnl.sys
Caused By Address : dxgkrnl.sys+fef58
File Description  : 
Product Name      : 
Company           : 
File Version      : 
Processor         : x64
Crash Address     : ntoskrnl.exe+14dca0
Stack Address 1   : 
Stack Address 2   : 
Stack Address 3   : 
Computer Name     : 
Full Path         : C:\Windows\Minidump\050414-23078-01.dmp
Processors Count  : 2
Major Version     : 15
Minor Version     : 9600
Dump File Size    : 960,616
Dump File Time    : 5/4/2014 1:19:33 PM
==================================================

==================================================
Dump File         : 050414-13859-01.dmp
Crash Time        : 5/4/2014 11:25:14 AM
Bug Check String  : 
Bug Check Code    : 0x00000116
Parameter 1       : ffffe000`008cf4d0
Parameter 2       : fffff800`024a2dfc
Parameter 3       : ffffffff`c000000d
Parameter 4       : 00000000`00000003
Caused By Driver  : dxgkrnl.sys
Caused By Address : dxgkrnl.sys+fef58
File Description  : 
Product Name      : 
Company           : 
File Version      : 
Processor         : x64
Crash Address     : ntoskrnl.exe+14dca0
Stack Address 1   : 
Stack Address 2   : 
Stack Address 3   : 
Computer Name     : 
Full Path         : C:\Windows\Minidump\050414-13859-01.dmp
Processors Count  : 2
Major Version     : 15
Minor Version     : 9600
Dump File Size    : 660,096
Dump File Time    : 5/4/2014 11:27:02 AM
==================================================

thnz for reading and thnz advance for helping me :)

sorry for my bad english