BSOD while gaming

Hello guys, i've got the following problem.
While playing Sims 3 and the new Counterstrike i got 2 Times a BSOD. The first time i thought ok **** happens but the second time i knew sth is not right.

Here are my components :

CPU: Intek Core i5 2500k
Graphiks: Gigabyte Geforce 570 GTX OC
Ram : 8GB G.Skill SNIPER DDR3-1600 DIMM CL9
Mainboard : Asus Maximus IV GENE-Z/GEN3
OS: Windows 7 Ultimate x64
Drivers: all up to date

and now the Report , i hope somebody can help me


==================================================
Dump File : 090112-6130-01.dmp
Crash Time : 01.09.2012 21:23:24
Bug Check String :
Bug Check Code : 0x00000116
Parameter 1 : fffffa80`098561c0
Parameter 2 : fffff880`0fd741a4
Parameter 3 : ffffffff`c000009a
Parameter 4 : 00000000`00000004
Caused By Driver : dxgkrnl.sys
Caused By Address : dxgkrnl.sys+5d000
File Description :
Product Name :
Company :
File Version :
Processor : x64
Crash Address : ntoskrnl.exe+7f1c0
Stack Address 1 :
Stack Address 2 :
Stack Address 3 :
Computer Name :
Full Path : C:\Windows\Minidump\090112-6130-01.dmp
Processors Count : 4
Major Version : 15
Minor Version : 7601
Dump File Size : 620.944
==================================================

==================================================
Dump File : 083012-6255-01.dmp
Crash Time : 30.08.2012 03:38:13
Bug Check String :
Bug Check Code : 0x00000116
Parameter 1 : fffffa80`0b2944e0
Parameter 2 : fffff880`0fd671a4
Parameter 3 : ffffffff`c000009a
Parameter 4 : 00000000`00000004
Caused By Driver : dxgkrnl.sys
Caused By Address : dxgkrnl.sys+5d000
File Description :
Product Name :
Company :
File Version :
Processor : x64
Crash Address : ntoskrnl.exe+7f1c0
Stack Address 1 :
Stack Address 2 :
Stack Address 3 :
Computer Name :
Full Path : C:\Windows\Minidump\083012-6255-01.dmp
Processors Count : 4
Major Version : 15
Minor Version : 7601
Dump File Size : 758.280
==================================================

The card isn't even 1 year old xD.

When i'm playing League of Legends i notice that the GPU fan gets realy loud but i don't get a BOSD.

Which tool shall i use that saves me the report even when i get a BSOD ?

I never overclocked the Card by myself. When i'm using Furemark and make the stresstest everything works perfect but i think the reason why it works is that while running furemark the GPU is throttelt.
I raised the core Voltage from 1013 to 1026 and will see if that works


Edit : It didn't work. But i know now what the problem is, its overheating. The joke is its overheating while playing counterstrike with over 90 °C and its stable @ 79°C when i run a full stresstest with Furemark . I dont know what to do now
Edited by Papaace - 9/1/12 at 4:50pm

The GPU is not even 1 year old, why shall i try to limitate the FPS in a game when i have a GPU which should handle it in easymode ?