Got BSODs and need analysis of event log and minidumps

By SSL256
Aug 7, 2011
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  1. Hi everybody,

    Around June 19th, I started getting regular BSODs. So far, I've had 11 BSODs since that date.

    Here is the event log data from all the crashes:

    0x1000007f (0x0000000a, 0x00000000, 0x00000000, 0x00000000

    0x0000009c (0x00000005, 0xb834c050, 0xb2000018, 0x02000e0f

    0x0000009c (0x00000005, 0xb834c050, 0xb2002210, 0x10040400

    0x0000009c (0x00000001, 0x8054e5f0, 0xb2000000, 0x00000115

    0x0000009c (0x00000000, 0x8054e5f0, 0xf2000040, 0x00000800

    0x1000007f (0x0000000a, 0x00000000, 0x00000000, 0x00000000
    0x0000009c (0x00000001, 0xb834c050, 0xb2000000, 0x00000115
    0x0000009c (0x00000001, 0xb834c050, 0xb2000000, 0x00000115

    0x000000c2 (0x00000007, 0x00000cd4, 0x02100001, 0x88d82400
    0x0000009c (0x00000000, 0xb834c050, 0xb2000040, 0x00000800

    0x0000009c (0x00000005, 0xb834c050, 0xb2000018, 0x02000e0f

    I've attached minidumps from the 5 latest crashes on the above list.

    Would really appreciate some help.

    Attached Files:

  2. Route44

    Route44 TechSpot Ambassador Posts: 11,984   +72

    Repeating over and over is the error 0x9C: MACHINE_CHECK_EXCEPTION

    This is a hardware issue: an unrecoverable hardware error has occurred. The parameters have different meanings depending on what type of CPU you have but, while diagnostic, rarely lead to a clear solution. Most commonly it results from overheating, from failed hardware (RAM, CPU, hardware bus, power supply, etc.), or from pushing hardware beyond its capabilities (e.g., overclocking a CPU).

    Honestly, this is a very difficult error to work with because as it says a clear diagnosis rarely comes forth and I have never seen a minidump with this error code give a definitive answer as to the cause. I know IT techs that don't like working with it. What makes it so difficult is that it can be any hardware in your system -- and I mean any. Your dump simply cited Unknown Analysis and nothing more definitive.

    Here are some of the causes that were determined to be the source of 0x124/0x9C errors from posters here and abroad: NIC, DVD/CD drives, dust build up around the CPU that caused overheating of said CPU, bulging capacitors hidden by heatsink, video card, psu, motherboard, and external harddrive connected by USB.

    However, in light of your symptoms we want you to run Memtest on your RAM for diagnostic purposes.

    1. Go to and download the latest ISO version which is 4.20. It is free and perfectly safe.

    2. Burn ISO to a CD.

    3. Place CD in your drive and reboot with CD in drive. (You might have to place your drive as first bootable in your BIOS) The test will take over.

    There is a Tutorial: How to use Memtest in our Guides and Tutorials forum; follow the instructions. There is a newer version than what is listed; use the newer. If you need to see what the Memtest screen looks like go to reply #21. The third screen is the Memtest screen.

    Step1 - Let it run for a LONG time. The rule is a minimum of 7 Passes (not hours; this test is not measured by hours); the more Passes after 7 so much the better. The only exception is if you start getting errors before 7 Passes then you can skip to Step 2.

    There are 8 individual tests per Pass. Many people will start this test before going to bed and check it the next day.

    If you have errors you have corrupted memory and it needs to be replaced.

    Step 2 – Because of errors you need to run this test per stick of RAM. Take out one and run the test. Then take that one out and put the other in and run the test. If you start getting errors before 7 Passes you know that stick is corrupted and you don’t need to run the test any further on that stick.

    * Get back to us with the results

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