BSOD playing various games, ntoskrnl.exe

I have a custom built PC that, for the past 3 years or so, has run fine. I haven't changed any hardware in the last year or so. As of 11/26, I've been getting BSOD after running video games for varying lengths of time (ten minutes to an hour) on a pretty consistent basis. When not running games, I don't seem to BSOD.

Unfortunately, I did a lot of (what I considered to be proactive) things to my computer on 11/26, including removing unused programs and updating my video driver. Unfortunately, I don't have a system restore point on my PC. I've tried rolling back my video driver, but that has not fixed the issue.

Attached are my last few minidumps. Thanks for your time.

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

OS
Microsoft Windows 7 Ultimate 64-bit 7601 Multiprocessor Free Service Pack 1

CPU
Intel(R) Core(TM)2 Quad CPU Q8200 @ 2.33GHz

Motherboard
Gigabyte Technology Co., Ltd. EP45T-UD3LR

Memory
8.00 GB

Graphics Card(s)
NVIDIA GeForce GTX 550 Ti

Sound Card
(1) NVIDIA High Definition Audio (2) NVIDIA High Definitio

Hard Drives
(1) ST3250823AS ATA Device (2) WDC WD7500AACS-00D6B1 ATA Device

Welcome to SF.

Please post the following report before we proceed:

• Windows Genuine and Activation Issue Posting Instructions

Thanks for the response.

Code:

Diagnostic Report (1.9.0027.0):
-----------------------------------------
Windows Validation Data-->

Validation Code: 0
Cached Online Validation Code: 0x0
Windows Product Key: *****-*****-DD4YK-X43Q2-HXR8G
Windows Product Key Hash: +izJaHY5xVmNYaee97ZW2Eq7joA=
Windows Product ID: 00426-292-4534435-85941
Windows Product ID Type: 5
Windows License Type: Retail
Windows OS version: 6.1.7601.2.00010100.1.0.001
ID: {6047BD6E-CAE3-4ABF-B8E5-2EFE5BAEE0EF}(1)
Is Admin: Yes
TestCab: 0x0
LegitcheckControl ActiveX: N/A, hr = 0x80070002
Signed By: N/A, hr = 0x80070002
Product Name: Windows 7 Ultimate
Architecture: 0x00000009
Build lab: 7601.win7sp1_gdr.120830-0333
TTS Error: 
Validation Diagnostic: 
Resolution Status: N/A

Vista WgaER Data-->
ThreatID(s): N/A, hr = 0x80070002
Version: N/A, hr = 0x80070002

Windows XP Notifications Data-->
Cached Result: N/A, hr = 0x80070002
File Exists: No
Version: N/A, hr = 0x80070002
WgaTray.exe Signed By: N/A, hr = 0x80070002
WgaLogon.dll Signed By: N/A, hr = 0x80070002

OGA Notifications Data-->
Cached Result: N/A, hr = 0x80070002
Version: N/A, hr = 0x80070002
OGAExec.exe Signed By: N/A, hr = 0x80070002
OGAAddin.dll Signed By: N/A, hr = 0x80070002

OGA Data-->
Office Status: 109 N/A
OGA Version: N/A, 0x80070002
Signed By: N/A, hr = 0x80070002
Office Diagnostics: B4D0AA8B-604-645_025D1FF3-364-80041010_025D1FF3-229-80041010_025D1FF3-230-1_025D1FF3-517-80040154_025D1FF3-237-80040154_025D1FF3-238-2_025D1FF3-244-80070002_025D1FF3-258-3

Browser Data-->
Proxy settings: N/A
User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Win32)
Default Browser: C:\Users\JsnThrtn\AppData\Local\Google\Chrome\Application\chrome.exe
Download signed ActiveX controls: Prompt
Download unsigned ActiveX controls: Disabled
Run ActiveX controls and plug-ins: Allowed
Initialize and script ActiveX controls not marked as safe: Disabled
Allow scripting of Internet Explorer Webbrowser control: Disabled
Active scripting: Allowed
Script ActiveX controls marked as safe for scripting: Allowed

File Scan Data-->

Other data-->
Office Details: <GenuineResults><MachineData><UGUID>{6047BD6E-CAE3-4ABF-B8E5-2EFE5BAEE0EF}</UGUID><Version>1.9.0027.0</Version><OS>6.1.7601.2.00010100.1.0.001</OS><Architecture>x64</Architecture><PKey>*****-*****-*****-*****-HXR8G</PKey><PID>00426-292-4534435-85941</PID><PIDType>5</PIDType><SID>S-1-5-21-303159996-2309836984-918553846</SID><SYSTEM><Manufacturer>Gigabyte Technology Co., Ltd.</Manufacturer><Model>EP45T-UD3LR</Model></SYSTEM><BIOS><Manufacturer>Award Software International, Inc.</Manufacturer><Version>F4</Version><SMBIOSVersion major="2" minor="4"/><Date>20090113000000.000000+000</Date></BIOS><HWID>75623F07018400F8</HWID><UserLCID>0409</UserLCID><SystemLCID>0409</SystemLCID><TimeZone>Central Standard Time(GMT-06:00)</TimeZone><iJoin>0</iJoin><SBID><stat>3</stat><msppid></msppid><name></name><model></model></SBID><OEM/><GANotification/></MachineData><Software><Office><Result>109</Result><Products/><Applications/></Office></Software></GenuineResults>  

Spsys.log Content: 0x80070002

Licensing Data-->
Software licensing service version: 6.1.7601.17514

Name: Windows(R) 7, Ultimate edition
Description: Windows Operating System - Windows(R) 7, RETAIL channel
Activation ID: ac96e1a8-6cc4-4310-a4ff-332ce77fb5b8
Application ID: 55c92734-d682-4d71-983e-d6ec3f16059f
Extended PID: 00426-00170-292-453443-00-1033-7600.0000-2942009
Installation ID: 002345672665398895239506983952762000463545445244050105
Processor Certificate URL: http://go.microsoft.com/fwlink/?LinkID=88338
Machine Certificate URL: http://go.microsoft.com/fwlink/?LinkID=88339
Use License URL: http://go.microsoft.com/fwlink/?LinkID=88341
Product Key Certificate URL: http://go.microsoft.com/fwlink/?LinkID=88340
Partial Product Key: HXR8G
License Status: Licensed
Remaining Windows rearm count: 4
Trusted time: 12/6/2012 12:14:28 AM

Windows Activation Technologies-->
HrOffline: 0x00000000
HrOnline: 0x00000000
HealthStatus: 0x0000000000000000
Event Time Stamp: 10:4:2012 12:35
ActiveX: Registered, Version: 7.1.7600.16395
Admin Service: Registered, Version: 7.1.7600.16395
HealthStatus Bitmask Output:


HWID Data-->
HWID Hash Current: OgAAAAIABgABAAEAAQACAAAAAQABAAEAln0muIb7TjRGvIQ0DDXiX+S/mLK07D5V3oike3Tt3DxMWA==

OEM Activation 1.0 Data-->
N/A

OEM Activation 2.0 Data-->
BIOS valid for OA 2.0: yes, but no SLIC table
Windows marker version: N/A
OEMID and OEMTableID Consistent: N/A
BIOS Information: 
  ACPI Table Name	OEMID Value	OEMTableID Value
  APIC			GBT   		GBTUACPI
  FACP			GBT   		GBTUACPI
  HPET			GBT   		GBTUACPI
  MCFG			GBT   		GBTUACPI
  EUDS			GBT   		
  SSDT			PmRef		CpuPm

Also, just to throw it out there, just ran 7 passes of Memtest86, with no faults coming back.

Looks good, thanks.

Code:

Event[0]:
  Log Name: Application
  Source: NVIDIA OpenGL Driver
  Date: 2012-05-10T23:41:29.000
  Event ID: 2
  Task: N/A
  Level: Warning
  Opcode: N/A
  Keyword: Classic
  User: N/A
  User Name: N/A
  Computer: JsnThrtn-PC
  Description: 
The NVIDIA OpenGL driver has encountered
an out of memory error. This application might
behave inconsistently and fail.

Okay so from your files there seem to be lot of errors with your video cards memory. This may be a sign that it has gone bad or is about to. If your motherboard has an onboard vga, connect to that and see if it crashes while gaming. Try lowering the settings of the game if you have optimized them earlier.

Click on the Start ► Control Panel ► Programs ► Uninstall a program ► Uninstall everything related to; NVIDIA and restart the system. Delete remnants of its drivers/older drivers using Driver Fusion/Sweeper

Download this version of the drivers and install them:

• Download NVIDIA Forceware 306.23 WHQL Vista 64 - FileHippo.com

Then stress test the video cards memory:

• |MG| Video Memory Stress Test 1.7.116 Download

From one of the reports it looks like a very old driver from is contributing in crashes. Check for an update on its driver and see if updating it helps.

• Driver Reference Table

Code:

1: kd> lmvm Envy24HF
start             end                 module name
fffff880`04699000 fffff880`046bda00   Envy24HF T (no symbols)           
    Loaded symbol image file: Envy24HF.sys
    Image path: \SystemRoot\system32\drivers\Envy24HF.sys
    Image name: Envy24HF.sys
    Timestamp:        Thu Mar 15 07:18:11 2007 (45F89ED3)
    CheckSum:         00029E86
    ImageSize:        00024A00
    Translations:     0000.04b0 0000.04e4 0409.04b0 0409.04e4

Video Card - Stress Test with Furmark

• Video Card - Stress Test with Furmark

Monitor your temps with Speccy during these tests

• Speccy - System Information - Free Download

Post a screenshot of Summary tab using Speccy:

• Speccy - System Information - Free Download

Also check for a newer BIOS version:

Code:

BIOS Version/Date	Award Software International, Inc. F4, 1/13/2009

Post back results.

Alright, went ahead and did everything listed above.

Fully uninstalled Nvidia, then installed the one posted above. The memory stress test came back with 0 faults.

I was able to update Envy24HF driver.

Ran Furmark and Speccy. Temperature peaked at 85 about 6 or so minutes in, ran the test for about 20 minutes total. No artifacting or crashing. I did forget to take a picture right after the test finished, though.

I'm going to run a few games and see if I get a BSOD, but everything's looking pretty alright at this point. I'll give it a couple of days and mark as solved if everything stays stable.

And thanks so much for all the help so far.

Same BSOD about 1 hour into playing Far Cry 3. Probably exactly when you responded, coincidentally.

Attached new info with most recent crash.

I have, but only had it run through 1 pass.