PC intermittent crashing bsod

By alaneglinton ยท 8 replies
Jul 29, 2008
  1. New to the forum, looking for some help !
    I have just bought a 2nd hand PC with AMD64 3500+ CPU on Asus A8N-SLI Deluxe board running XP SP3 and it keeps crashing (about once every 4 or 5 hrs) the power does not appear to switch off.
    The whole system reboots each time instantaneously. The PC does not crash any more frequently or faster if it has just crashed.
    I gave the PC a good clean out + checked connections etc after I started to see the problem and there was an incredible amount of dust in the Graphics card cooling fan and the Motherboard chipset fan. The chipset fan was very noisy on boot up, but clearing the dust away has rectified this.
    Still the PC crashes !
    I'm only surfing the net and running Squeezebox, so the PC shouldn't be under any pressure.

    I have loaded Probe 2 and I'm seeing...
    CPU temp - 42 to 46C
    MB temp - 42 to 45C

    All voltages + fans seem to happy and running well. One chassis fan (from 2) is not connected.

    on stopping auto reboot I get blue screen with IRQL_NOT_LESS_OR_EQUAL and the usual message, trouble shooting tips etc

    Info from system log is (summarised)....

    Event Type: Error
    Event Source: System Error
    Event Category: (102)
    Event ID: 1003
    Date: 27/07/2008
    Time: 13:11:36
    User: N/A
    Computer: EGG_PC
    Error code 1000000a, parameter1 a0dc29ec, parameter2 00000002, parameter3 00000000, parameter4 804f9932.

    Crashed again on reboot after C drive error check with additional blue screen message.....
    "nvatabus.sys - address BA71CE19 base at BA17A000 Datestamp 428a9013"

    Also get this bs error


    Event Type: Error
    Event Source: System Error
    Event Category: (102)
    Event ID: 1003
    Date: 28/07/2008
    Time: 22:15:49
    User: N/A
    Computer: EGG_PC
    Error code 10000050, parameter1 80dda210, parameter2 00000000, parameter3 805c5c1a, parameter4 00000000.

    I have 10 x mindumps but have no idea about redaing or understanding them

    Have tried the following : cleaning and reseating everything, deleteing and updating all drivers, memtest, defrag C drive, deleting page/swap file.

    Thanks for any suggestions, alan
  2. woody1191

    woody1191 TS Rookie Posts: 572

    You have these errors 0xA (Twice), 0x50 and 0x7F all can be caused by Hardware failures although Software is another cause as well. Specifically 0x50 can be caused by Memory errors and 1 of the 0xA errors cites Memory Corruption as a possible cause.
    How long did you run memtest86 for?
    It is best to run Memtest86 for a Minimum of 7 Passes or Overnight.

    Check your CPU using Prime95 - http://files.extremeoverclocking.com/file.php?f=103

    And try taking your Graphics Card out and then running the computer to see if it is stable.
  3. alvin.marbella

    alvin.marbella TS Rookie

    That's probably a memory problem...to isolate the problem, try to swap your RAM with a good one but see to it that it has the same specs with your current memory.
  4. nickc

    nickc TechSpot Paladin Posts: 923   +11

    if u have more than one mem module try taking out all but one and see if it will boot and then stay running.
  5. alaneglinton

    alaneglinton TS Rookie Topic Starter

    hi folks, thanks for the input....

    Crashed again today,

    Product: Windows Operating System
    ID: 1003
    Source: System Error
    Version: 5.2
    Symbolic Name: ER_KRNLCRASH_LOG
    Message: Error code %1, parameter1 %2, parameter2 %3, parameter3 %4, parameter4 %5.

    Event Type: Error
    Event Source: System Error
    Event Category: (102)
    Event ID: 1003
    Date: 30/07/2008
    Time: 07:29:56
    User: N/A
    Computer: EGG_PC
    Error code 0000007f, parameter1 00000000, parameter2 00000000, parameter3 00000000, parameter4 00000000.

    0000: 53 79 73 74 65 6d 20 45 System E
    0008: 72 72 6f 72 20 20 45 72 rror Er
    0010: 72 6f 72 20 63 6f 64 65 ror code
    0018: 20 30 30 30 30 30 30 37 0000007
    0020: 66 20 20 50 61 72 61 6d f Param
    0028: 65 74 65 72 73 20 30 30 eters 00
    0030: 30 30 30 30 30 30 2c 20 000000,
    0038: 30 30 30 30 30 30 30 30 00000000
    0040: 2c 20 30 30 30 30 30 30 , 000000
    0048: 30 30 2c 20 30 30 30 30 00, 0000
    0050: 30 30 30 30 0000

    to answer questions posted, have run memtest86 for 3 passes - no errors. will run overnite tonite.
    PC always bootsup OK although chipset fan squeals for 2 or 3 mins then settles down. The fault occurs only very 4 or 5hrs so its proving slow to change something and then check.
    Have swapped my 4 x 500Mb Ram around, awaiting results.
    Will try 'stresstest' tomorrow

    Anyone make anything of the minidumps ? cheers, alan
  6. nickc

    nickc TechSpot Paladin Posts: 923   +11

    three passes with memtest86 is not enough, u need at least 7 or over night. bad mem. can pass memtest once in a while but if u have any errors u need to replace the memory.
  7. alaneglinton

    alaneglinton TS Rookie Topic Starter

    Memtset x 10 is OK

    Hi Nic, ran Memtset86 overnite (10 passes, 8+hrs) no errors and no crash either. Updated BIOS also.
    Will start to replace/remove RAM after next crash.
    cheers, alan
  8. woody1191

    woody1191 TS Rookie Posts: 572

    Before removing the RAM try using Prime95 which i linked earlier in the thread, use all three tests and tell us what happens.

    Prime95 can test both the CPU and RAM and seems to be a good second test to Memtest86 because it tests different areas of the RAM and sometimes bad RAM can pass Memtest86, Prime95 is less tolerant with any error with these parts and so will find any error in minutes. You only need to run each test for about 10-15 mins max.
  9. alaneglinton

    alaneglinton TS Rookie Topic Starter

    Fixed ?!

    Hi folks, I know I'm tempting fate, but......
    Looks like the last changes - update bios or maybe less likely, re-seating RAM has done the business ! That coupled with getting rid of the Vidia drivers.
    Curiously (coincidence ?) CPU temp and fan speed are better since BIOS update. CPU Temp was typically 42-46C, now 34-38C. Fan Speed 2,200rpm max before, now 3,400rpm.

    I though I would be clever and download the latest NVidia mobo drivers after these 2 changes BUT blue screen on boot up every time.
    Quickly deleted and back to OK, so this was also clearly a problem.

    Replaced the increasingly very noisy (reday to fail) chipset fan with Zalman ZM-NBF47 Northbridge Flower Heatsink (NIGHTMARE of a job !), so now no fan to be noisy ! MB temp now = 42-44C - hopefully not getting any hotter !

    May still do the Prime95 test - when I'm feeling brave after a few days with no crash !

    Thanks to everyone for all their help, very much appreciated.

    alan :lol:
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