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Random Blue Screen Error in Windows 7 ultimate 64 bit

NikhilKatre asked on
Hello,

I am using Windows 7 64 bit on my assembled PC and am getting random blue screen error since a long time. I am attaching a link to a zip folder containing the most recent minidump files. Can anyone help me about what is to be done to solve the problem?


Thanks

- Nikhil 
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Patrick Barker replied on
Hi,

First of all, we have over ~50 dumps attached. This is a very alarming amount of dump files. We seem to have a consistent few bugchecks:

IRQL_NOT_LESS_OR_EQUAL (a)

A kernel-mode driver or process attempted to access a protected memory location it does not have permission for, or a kernel interrupt request level (IRQL) attempted to access a memory address that is too high.

This bugcheck usually occurs when a driver uses an incorrect memory address. Other possible causes of this error include: bug in a device driver, system service, the BIOS, an old Anti-virus program or backup tool, or possibly memory issues.

SYSTEM_SERVICE_EXCEPTION (3b)

An exception happened while executing a routine that transitions from non-privileged code to privileged code.

This bugcheck is generally related to a video driver issue, although memory failure is a possibility as well.

MEMORY_MANAGEMENT (1a)

A severe memory management error occurred.


Usually memory related, although device drivers and other hardware issues can sometimes cause this bugcheck.


Your loaded drivers list seems to be fairly clean and I don't see any popular 3rd party drivers that could cause corruption or issues. I believe we are likely dealing with a hardware issue here, especially because of the system uptime:


1. System Uptime: 0 days 0:03:33.364


2. System Uptime: 0 days 0:04:12.513

3. System Uptime: 0 days 0:26:22.173

4. System Uptime: 0 days 0:14:54.043

etc

Let's run a Memtest first for NO less than ~8 passes (several hours):

Memtest86+:



Download Memtest86+ here:



http://www.memtest.org/



Which should I download?



You can either download the pre-compiled ISO that you would burn to a CD and then boot from the CD, or you can download the auto-installer for the USB key. What this will do is format your USB drive, make it a bootable device, and then install the necessary files. Both do the same job, it's just up to you which you choose, or which you have available (whether it's CD or USB).



How Memtest works:



Memtest86 writes a series of test patterns to most memory addresses, reads back the data written, and compares it for errors.



The default pass does 9 different tests, varying in access patterns and test data. A tenth test, bit fade, is selectable from the menu. It writes all memory with zeroes, then sleeps for 90 minutes before checking to see if bits have changed (perhaps because of refresh problems). This is repeated with all ones for a total time of 3 hours per pass.



Many chipsets can report RAM speeds and timings via SPD (Serial Presence Detect) or EPP (Enhanced Performance Profiles), and some even support changing the expected memory speed. If the expected memory speed is overclocked, Memtest86 can test that memory performance is error-free with these faster settings.



Some hardware is able to report the "PAT status" (PAT: enabled or PAT: disabled). This is a reference to Intel Performance acceleration technology; there may be BIOS settings which affect this aspect of memory timing.



This information, if available to the program, can be displayed via a menu option.



Any other questions, they can most likely be answered by reading this great guide here:



http://forum.canardpc.com/threads/28864-FAQ-please-read-before-posting



Regards,

Patrick
Debugger/Reverse Engineer.
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