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Windows 7: ntsokrnl.exe BSOD when running Prime95

14 Jul 2012   #1

Windows 7 Ultimate 64-bit
ntsokrnl.exe BSOD when running Prime95

Hello All.

I have a newly built PC, which I overclocked. I've been running stress tests for a week and every once in a while, while running Prime95, I get this BSOD.

It passed small ffts and blend for over 12 hours each multiple times, as well as memtest+ (5 passes, no errors), so I didnt think it was related to the overclock. I have not re-installed the OS, and I would REALLY like to avoid that option, but I can if I have to. I've also run dskchk, SFC /scannow, and I tried the driver verifier but stopped after I had an unrelated boot issue.

Any help you can provide would be greatly appreciated.

My setup is:
Asus Maximus V Gene
2x4GB Samsung RAM
Samsung 830 series SSD-OS
Seagate 1TB storage drive
Windows 7 Ultimate 64-bit (retail)

Let me know if you need any more info.

My System SpecsSystem Spec
14 Jul 2012   #2

Windows 7 Home Premium 64 Bit

Device Concerns:
WAN Miniport (IKEv2)	ROOT\MS_AGILEVPNMINIPORT\0000	This device is not working properly because Windows cannot load the drivers required for this device.
Were you aware of the above? Have you taken any steps to resolve it?

Hardware devices are not working or are not detected in Windows may help. You should also make sure all network drivers are installed from your motherboard support site.

Software Concerns:
Start Menu\Programs\ASUS\AI Suite II
Start Menu\Programs\ASUS\ASUS ROG Connect Plus
Start Menu\Programs\ASUS\ROG GameFirst
Start Menu\Programs\
  • Recommend removing your ASUS utilities through Start Menu -> Control Panel -> Uninstall a program. They can provide software interfaces with the hardware for overclocking, and even when the overclock is not enabled, that interface can cause instability. They are also not needed for the system to function properly and may reduce system resources.

  • I personally do not recommend 3rd party defrag tools. I have seen them damage restore points and even cause blue screen crashes. Windows has some nice command line flags for the defrag command that will accomplish the same tasks as 3rd party programs. The -b and -w flags will defrag boot files and the boot registry items as well as compact the data to the center of the disk for faster access.
    defrag c: -b
    defrag -c -v -w
    The first command optimizes boot performance for the Windows drive by defragmenting boot files and boot registry items.

    The second command includes all drives on the system through the -c command and optimizes the drives by compacting the data to the center of the disk. Verbose output through the -v option is optional to provide the user with more information about the defrag tasks. The commands have to be run in an Elevated Command Prompt.

    For more flags, see Disk Defragmenter - Open and Use.

Crashes may indicate an issue with your LogMeIn software or with your memory. Update the LogMeIn software if you need to use it; yours is a bit old and may cause conflicts.

For the memory, you already ran some tests, but you should run Memtest86+ for 7-10 passes (preferably more if possible; it can take up to 21 passes to find errors).
[list][*]If you are overclocking any hardware, please stop.

[*]Run the boot version of Memtest86+ paying close attention to Parts 2 and 3 of the tutorial. Also, in case Memtest86+ misses anything and comes up with no errors, run the extended version of the Windows Memory Diagnostics Tool for at least five passes. These you may want to run overnight since they take a long time to complete (run them an hour before bed each of the next two nights and check before going to sleep that they are still running).
warning   Warning
Before you proceed with the following, answer these two questions: Are you still under warranty? Does your warranty allow you to open up the machine to check hardware? If you are unsure of the answers to these questions, contact your system manufacturer. WARNING: The steps that follow can void your warranty!!!

For Part 3: If You Have Errors: If you swap any memory components, follow these steps for ESD safety:
  1. Shut down and turn off your computer.
  2. Unplug all power supplies to the computer (AC Power then battery for laptops, AC power for desktops)
  3. Hold down the power button for 30 seconds to close the circuit and ensure all power drains from components.
  4. Make sure you are grounded by using proper grounding techniques, i.e. work on an anti-static workbench, anti-static desk, or an anti-static pad. Hold something metallic while touching it to the anti-static surface, or use an anti-static wristband to attach to the anti-static material while working. If you do not have an anti-static workbench, desk, or pad, you can use your computer tower/case by finding a metal hold in it, such as a drive bay.
Once these steps have been followed, it is safe to remove and replace components within your computer.

[*]We should check RAM compatibility and settings:
Download and install CPU-Z and Upload screenshots of the CPU, Mainboard, Memory, and SPD tabs. In the SPD tab, upload an image of each slot.

Windows Activation:
I also note that Windows is not activated. When and how were you planning to activate it?
My System SpecsSystem Spec

 ntsokrnl.exe BSOD when running Prime95

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