PC Crashes while playing MOST games.

It is a stop 0x116, which is a display related BSOD.

Apply the latest version of nVidia display driver, 320.49 WHQL.
You may download it directly, from our forum link Latest NVIDIA ForceWare Video Drivers Windows 7; or you may opt for the Option 2 of Drivers- Download NVIDIA Drivers for “Automatically find drivers for my NVIDIA products” (it requires java installed).



Check if the Power Supply Unit (PSU) supplying adequate power to the computer or not.
eXtreme Power Supply Calculator
At least 30% extra is safe. Also let us know about the wattage of your PSU.

Are you overclocking? As you are getting BSODs, you should stop overclocking and run all the hardware components like CPU, GPU and RAM to their default settings. Also set the BIOS to default, too.
How To Clear CMOS (Reset BIOS)

Stress test the Graphics Card using Furmark.
Video Card - Stress Test with Furmark

Test your RAM modules for possible errors.
How to Test and Diagnose RAM Issues with Memtest86+
Run memtest for at least 8 passes, preferably overnight.

Is the computer hot? Report us the heat of the computer after a couple of hours of your normal usage. Upload a screenshot of the summery tab of Speccy.

Try to dismantle the PC. Clean the inside carefully. Clean the air vents and fan grills specially, so that it can blow the hot air out efficiently. While re-seating, apply new thermal paste to the CPU.


Let us know when all are done.
______________________________________________________________________________
BSOD ANALYSIS:

Code:

......
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck 116, {fffffa800c5ca4e0, fffff88004f62668, ffffffffc000000d, 3}

Unable to load image \SystemRoot\system32\DRIVERS\nvlddmkm.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for nvlddmkm.sys
*** ERROR: Module load completed but symbols could not be loaded for nvlddmkm.sys
Probably caused by : nvlddmkm.sys ( nvlddmkm+933668 )

Followup: MachineOwner
---------

0: kd> !analyze -v
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

VIDEO_TDR_FAILURE (116)
Attempt to reset the display driver and recover from timeout failed.
Arguments:
Arg1: fffffa800c5ca4e0, Optional pointer to internal TDR recovery context (TDR_RECOVERY_CONTEXT).
Arg2: fffff88004f62668, The pointer into responsible device driver module (e.g. owner tag).
Arg3: ffffffffc000000d, Optional error code (NTSTATUS) of the last failed operation.
Arg4: 0000000000000003, Optional internal context dependent data.

Debugging Details:
------------------


FAULTING_IP: 
nvlddmkm+933668
fffff880`04f62668 4055            push    rbp

DEFAULT_BUCKET_ID:  GRAPHICS_DRIVER_TDR_FAULT

CUSTOMER_CRASH_COUNT:  1

BUGCHECK_STR:  0x116

PROCESS_NAME:  System

CURRENT_IRQL:  0

STACK_TEXT:  
fffff880`057d3718 fffff880`05139054 : 00000000`00000116 fffffa80`0c5ca4e0 fffff880`04f62668 ffffffff`c000000d : nt!KeBugCheckEx
fffff880`057d3720 fffff880`0510c569 : fffff880`04f62668 fffffa80`0b8f2000 00000000`00000000 fffffa80`0b889410 : dxgkrnl!TdrBugcheckOnTimeout+0xec
fffff880`057d3760 fffff880`05138e01 : fffffa80`0c5ca4e0 fffffa80`0c5ca4e0 fffffa80`0c5ca4e0 fffffa80`0b889410 : dxgkrnl!DXGADAPTER::PrepareToReset+0x109
fffff880`057d37a0 fffff880`05464f13 : fffffa80`0c5ca4e0 00000000`00000000 fffffa80`088ed0f0 fffffa80`0b889410 : dxgkrnl!TdrIsRecoveryRequired+0x245
fffff880`057d37d0 fffff880`05492ed6 : 00000000`ffffffff 00000000`0007ba1d fffff880`057d3930 fffffa80`0b889410 : dxgmms1!VidSchiReportHwHang+0x40b
fffff880`057d38b0 fffff880`0548ee21 : fffffa80`0b8f8000 ffffffff`feced300 fffffa80`0c419ec0 fffff880`054739d3 : dxgmms1!VidSchWaitForCompletionEvent+0x196
fffff880`057d38f0 fffff880`0548efd9 : fffffa80`0b8f8000 fffffa80`0b889410 fffffa80`0b8f8b00 00000000`00000000 : dxgmms1!VidSchiWaitForCompletePreemption+0x7d
fffff880`057d39e0 fffff880`0548deb8 : 00000000`00000023 00000000`001f7f58 fffffa80`0c419ec0 fffffa80`0b889410 : dxgmms1!VidSchiSendToExecutionQueueWithWait+0x171
fffff880`057d3ae0 fffff880`0548d514 : fffff800`00b96000 fffff880`0548cf00 fffffa80`00000000 fffffa80`0000005c : dxgmms1!VidSchiSubmitRenderCommand+0x920
fffff880`057d3cd0 fffff880`0548d012 : 00000000`00000000 fffffa80`088ed0f0 00000000`00000080 fffffa80`0b889410 : dxgmms1!VidSchiSubmitQueueCommand+0x50
fffff880`057d3d00 fffff800`0332eede : 00000000`03006939 fffffa80`0a9e5b50 fffffa80`06d16040 fffffa80`0a9e5b50 : dxgmms1!VidSchiWorkerThread+0xd6
fffff880`057d3d40 fffff800`03081906 : fffff800`0320be80 fffffa80`0a9e5b50 fffff800`03219cc0 fffff880`057d3e40 : nt!PspSystemThreadStartup+0x5a
fffff880`057d3d80 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KiStartSystemThread+0x16


STACK_COMMAND:  .bugcheck ; kb

FOLLOWUP_IP: 
nvlddmkm+933668
fffff880`04f62668 4055            push    rbp

SYMBOL_NAME:  nvlddmkm+933668

FOLLOWUP_NAME:  MachineOwner

MODULE_NAME: nvlddmkm

IMAGE_NAME:  nvlddmkm.sys

DEBUG_FLR_IMAGE_TIMESTAMP:  51427b3c

FAILURE_BUCKET_ID:  X64_0x116_IMAGE_nvlddmkm.sys

BUCKET_ID:  X64_0x116_IMAGE_nvlddmkm.sys

Followup: MachineOwner
---------

You are right, so change the GPU, earlier than it causes damage to any other hardware due to that abnormal heat.