BSOD irq_less_than...

By harncw
Feb 7, 2007
  1. minidumps attached the full set can be gotten here:

    BSOD Irq less than...

    CPU: AMD Athlon 64 X2 Dual Core Processor 4800+ 2.41Ghz
    Motherboard: BFG nForce4 Ultra
    Ram Speed, size and #sticks: 1gb, 2 sticks,
    GPU: XFX NVIDA GeForce 6600 GT
    PSU: Antec 500w
    OS: Windows XP Pro

    When does it typically happen?
    Most often when I play Dungeons and Dragon Online​
    What EXACTLY happens?
    BSOD "irq_less_than..."​

    And a history as well.
    Been happening for over half a year.​
    At one point, did your system work?
    Unsure :(
    Have you recently installed some new hardware/software?
    Always this is a development box as well... but no matter what I did nothing seems to improve or make it worse.​

    1. Before going any further, update the following:
    Video card drivers: or
    Motherboard chipset drivers: go to your motherboard maker’s website
    motherboard and video card are all Nvidia, Unified Driver Architecture (UDA)
    2. Check your Event Log
    nothing found other than 3. Auto reboot on error and reporting minidumps
    mini dumps attached
    4. Power supply issues
    Antec PSU is reportedly good stuff, 500w reportedly should be enough
    5. System temperatures
    Hmontior reports good temperatures, speedfan doesnt seem to support my hardware as the temperatures were crazy wrong, some below freezing and some above boiling.
    6. Undo Recent Changes to your system
    None to really do has been giving blue screens for quite awhile
    7. Faulty Ram / Dying ram
    Ran memtest all night something like 45 passes and no errors reported
  2. cpc2004

    cpc2004 TS Evangelist Posts: 1,994

    All of your minidumps have the same symptoms and it is symptom of device driver error.

    Mini012307-01.dmp BugCheck 100000D1, {8000e, 6, 1, 867860eb}
    Probably caused by : ntkrpamp.exe ( nt!KiChainedDispatch2ndLvl+44 )
    WARNING: Frame IP not in any known module. Following frames may be wrong.
    f7a07c8c 805444bc 866bbe18 007869a4 804feef4 0x867860eb
    f7a07cb0 80544469 00000002 00000173 f7a07d50 nt!KiChainedDispatch2ndLvl+0x44
    f7a07cb0 f76adc46 00000002 00000173 f7a07d50 nt!KiChainedDispatch+0x29
    f7a07d50 80544d2c 00000000 0000000e 00000000 processr!AcpiC1Idle+0x12
    f7a07d54 00000000 0000000e 00000000 00000000 nt!KiIdleLoop+0x10

    You have nvatbus.sys and nv4_disp.dll (ie nVidia display card driver) at different version. Probably nVidia Display Card Driver screw up your windows.

    nv4_disp.dll Mon Oct 23 05:02:50 2006 (453BDC7A)
    nvatabus.sys Thu Nov 04 12:58:17 2004 (4189B6E9)
  3. harncw

    harncw TS Rookie Topic Starter

    What's the wisdom on getting my driver's straight?

    BFG for the mobo driver
    goto xfx for the video card driver
    hmmm... seems as though I already did that..

    could it just be a funky mobo/video card combination?

    anyone's thoughts on that?
  4. cpc2004

    cpc2004 TS Evangelist Posts: 1,994

    All the dumps were crashed with exactly the same instruction and this is symptom of software error or firmware error of the BIOS. Maybe the culprit is the firmware of the BIOS. Anyway it is no harm to upgrade the BIOS may resolve the blue screen.
  5. harncw

    harncw TS Rookie Topic Starter

    I appreciate your advice, I already did upgrade the bios as well... but forgot to mention it above...

    I think I'm gonna give up and rebuild this system, using an extra mobo I have laying around.
  6. cpc2004

    cpc2004 TS Evangelist Posts: 1,994

    As you've upgraded the the firmware of the BIO, rebuild windows will resolve the blue screen problem.
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