Bad pool header?

By MrkenoBoy · 8 replies
Jun 28, 2011
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  1. Get BSOD on a PC, almost exclusively used to surf. So no overclocking or demanding games running. I have run Memtest86 about 9 h - no errors. Have tested the drive using HD Tune and Maxator and Seagate Diagnostics - no errors. No dust in the computer, no temperature problems. Reinstalled OS(winxp 32 bite), updated motherboard and video card drivers and win update correctly but the crashes are continuing.

    The latest crasch looks (according whocrashed):
    What is POOL HEADER?

    The craschen before the latest one was also about file hal.dll as above according to:
    I also thought about updating BIOS but is unsure what to update. Are many different things and don't know what is relevant.
    Link -->

    Does someone know what might be causing these crashes? grateful for the help

    Earlier crash dumps seem to have with my graphic card(Connect 3D Radeon X300) to do, especially files:

    ati2mtag.sys (ATI Radeon WindowsNT Miniport Driver, ATI Technologies Inc.)
    ati2dvag.dll (ATI Radeon WindowsNT Display Driver, ATI Technologies Inc.)
    ati2cqag.dll (Central Memory Manager / Queue Server Module, ATI Technologies Inc.)

    The crashes are as follows:
  2. Route44

    Route44 TechSpot Ambassador Posts: 11,984   +72

    See if the following helps resolve your issues:

    1. Download Driver Sweeper free version to your desktop screen and install.

    2. Download the latest diver(s) for your video card but don't install them.

    3. Uninstall your video card drivers and reboot your PC into Safe Mode. Run Driver Sweeper and remove ONLY the video card drivers. I had someone use it on their chipset drivers! If it doesn't find any video card drivers that is quite okay; just leave all other drivers alone.

    4. Reboot and install new video card drivers.
  3. MrkenoBoy

    MrkenoBoy TS Rookie Topic Starter

    Do u think this is necessary because, as I said, I've unistalled, formatted the HDD and installed OS with newest mobo and video card drivers and win update - 3 days ago?

    Before reinstallation of OS I've got BSODs too(see above) but not of this type. Should I upgrade BIOS or increase the voltage on the RAM? Could it be the PSU or video card, and how to diagnostic these?
  4. Route44

    Route44 TechSpot Ambassador Posts: 11,984   +72

    Since reformatting are you getting any more Blue Screens? If so, please attach the five most recent in one Zip file.

    Have you run Memtest on your RAM?
  5. MrkenoBoy

    MrkenoBoy TS Rookie Topic Starter

    Since I reformatted I get 1 BSOD(Bad pool header) and its results u can see as quote 1 in #1 (the dump file is lost I noticed now?). I attach the latest 2 minidumps BEFORE the reformatting as well as a snapshoot of speedfan to see the voltages. I've read and under PSU issues it says that "there is the 3.3v, the 5v and the 12v and the readings shouldn't deviate more than 5 or 6%. Note, this 5-6% rule only applies to the +3.3v, +5v and +12v rails (not the negative rails)."
    Please take a look on the voltages. My +3.3V is 0V and the -12V is differing much but is maybe not so important.

    I've installed the latest mobo drivers from nvidia(dated may 2011). Although on my mobos website there is a one and only "nVidia Chipset Driver 8.26"(dated dec 2006). Should it be installed or is this really an update? Is it included in the latest drivers from nvidia?

    Attached Files:

  6. Route44

    Route44 TechSpot Ambassador Posts: 11,984   +72

    Power supply was one of my next guesses. And, yes you are correct the positive rails are what concerns us and if your +3.3v is actually zero then you will need a new psu.

    Question: what did you use to test your power supply? NEVER Mind -- I see. software monitoring for your power supply voltages is not the best way to go. Do you have a digital multimeter or can you borrow one? I'll check the dumps.

    UPDATE: The most important read in the minidump cites corrupted memory as your issue. Have you ever run memtest before?
  7. MrkenoBoy

    MrkenoBoy TS Rookie Topic Starter

    I checked with Memtest86 for about 8,5 h(don't know how many cycles), 1 week ago and no errors where found with 2 RAM sticks. After reading, the sticks should be tested separatelly. Should I do it again?

    So u mean that speedfan is not so trustworthy. I can see if I can borrow a multimeter. However, I don't know how to measure the voltages.

    Checking the voltages with hwmonitor the +3.3V is now +3.38V and speedfan is still showing 0V. Take a look in attached file. Conclusion?

    Attached Files:

  8. Route44

    Route44 TechSpot Ambassador Posts: 11,984   +72

    Memtest is measured in Passes, not hours. The rule is a minimum of 7 Passes and the more the better. As good as this test is bad RAM has been known to Pass on occasion.

    Testing per stick would be a good idea.

    The voltages seem fine but an actual digital multimeter would be the best here. If you are game I can direct you on how to use one. I have a Craftsman that I got for around $20 and it works great.
  9. MrkenoBoy

    MrkenoBoy TS Rookie Topic Starter

    Problably the PSU is ok and we leave it for now. In my device manager there is 2 yellow question marks under "other devices". I got the same message(to the right in attached screenshot) when trying to reinstall or update "PCI device" or "unknown device". I don't know what this device is.

    Attached Files:

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