TechSpot

Unexplained BSoDs

By Anubeon
Apr 27, 2007
  1. Unexplained BSoDs (mini-dumps attached)

    Greetings All,

    For over two months my machine (a Toshiba Qosmio G20) has been blue screening on an escalating basis. Initially the machine in question would present me with a BSoD about once or twice a week but now it's not uncommon for it to present once or twice a day.

    I have made a cursory analysis of the various mini-dumps (12), kernel-dumps (5) and memory-dumps (1) generated during these blue screens but cannot read much into them (being a layman in such things) and certainly cannot identify a culprit.

    I personally think that it is RAM related since product recovery didn't seem to fix the issue and the system (now refreshed) is lagging in performance. However I would appreciate a second opinion from someone more tech savy than I. To that end I have attached the 12 mini-dumps generated during the earliest incidences (all later incidences generated kernel or memory dumps).

    Laters,
    Lee.


    P.S. It may be worth me noting that electing NOT to load SPTD.sys when booting windows in safe mode causes an immediate BSoD. This is 100% reproducible, unfortunately the blue screen doesn't persist long enough for me to take any notes.
     

    Attached Files:

  2. Tmagic650

    Tmagic650 TS Ambassador Posts: 20,911   +167

    Hey Lee,
    thanks for all the dumps. You have these calls:

    NV4_DISP.DLL
    SANDBOX.SYS
    CMBATT.SYS
    WIN32K.SYS
    INTELPPM.SYS
    TOSRFBD.SYS
    CSRSS.EXE

    Check or replace the memory
     
  3. Anubeon

    Anubeon TS Rookie Topic Starter

    Thanks for the Response.

    Greetings Tmagic650,

    Heh, well I thought it best to be thorough.

    Thank you for confirming my fears. I'm going to arrange for the system to be shipped back to Toshiba UK for repair. Of course it would be much quicker for all concerned were they to simply ship the new RAM to me but logic somehow evades these big corporations. ;)

    As it happens this system has just been in for servicing (a faulty display needed replacing) and even though I gave them all the relevant queues (I told them about the BSoDs and directed them to the various dumps I'd collected) they failed to properly investigate the issue.

    Laters,
    Lee.
     
  4. Tmagic650

    Tmagic650 TS Ambassador Posts: 20,911   +167

    Ok Lee,
    good luck with this. Let Toshiba now about the minidump findings
     
  5. Anubeon

    Anubeon TS Rookie Topic Starter

    Hmm...

    Hello All,

    Well after an agonising fortnight with only an FM radio and two books for company the engineers have seen fit to return my laptop to me. Their investigations seem to have identified two faulty cooling modules and a damaged motherboard as the culprit and they've duly replaced the cooling modules and repair (not replaced!) the motherboard.

    Now comes the reason I'm once again here seeking advice. Within 48 hours of my laptops return it presented with yet another BSoD. This time I received a crazy number of error dialogues informing me that windows was unable to load powrprof.dll, each time I closed one another would appear. Anyhow I've generated an analysis of the kernel dump generated by the BSoD and I would appreciate your learned input.

    There are numerous references to I/O errors which does worry me a bit, especially seeing as this is the second time the laptop has been placed in the care of these 'engineers'. Is this definitely a hardware fault or could some underlying software issue conceivably through out a this type of error?

    I was going to run a full software recovery this weekend regardless (just in case the aforementioned non-descript damage to the motherboard caused any corruption etc...) so hopefully that will fix the issue. Otherwise I fear I'll be ranting down the phone line to Toshiba (for the third time this month) come Monday.

    Best,
    Lee.
     
  6. Route44

    Route44 TechSpot Ambassador Posts: 12,166   +37

    The 0xF4 error, from what I am reading, is a rare one. Several processes and threads are necessary for the operation of the system. When they are terminated for any reason, the system can no longer function.

    0x03 means a thread is terminated while an 0x06 means it is a process. Yours is happening at a process. It usually points to bad memory including video memory. It is a hardware issue but finding out exactly which hardware is the task at hand. I'd get back to Toshiba as fast as I could and let them know of this error. By looking at the faulty things they had to replace/repair makes me suspicious that this laptop of yours may have been damaged prior to your purchase.
     
  7. Anubeon

    Anubeon TS Rookie Topic Starter

    Erg!!!

    Greetings Route44,

    Thanks for taking the time to assess the above kernel dump analysis. So is it your opinion that there is little to no chance of this BSoD being related to software? If it were, for example, the laptops video graphics memory/card at fault would the system display any visual queues such as distorted video upon resizing a media player window and/or fragments of context menus persisting on screen even after the context menu in question has been collapsed? The laptop in question is well over a year old (more like a year and a half) and while it did initially present with the odd video related BSoD here and there (that I had put down to unstable drivers) they were nowhere near as frequent. Do RAM and other memory related faults generally progressively degrade in this manor?

    I am going to go ahead and conduct the product recovery anyway, at the very least it will afford me the ability to create a system back up comprising the latest windows updates (which take an age and half to download whenever I conduct such product recoveries). If that doesn't squeeze these pesky BSoDs out of the system then I shall soon be investing in a high powered megaphone and placing another call into the Toshiba technical 'support' 'helpline' for a rather loud 'pleasant discussion' regarding my newly 'repaired' laptop. ;)

    [rant]Frankly I am more than a little peeved with Toshiba regarding the way they've handled this situation. Firstly they palm off the repair on a third party. Secondly, said third party fails to even attempt to diagnose the BSoDs instead choosing only to replace the faulty display panel. And finally, the very same third party takes two weeks to replace two fans and repair a fault on the system board. Oh and the 3-4 day delay caused by a billing error having been handled via snail mail was a real mind killer; had they phoned me it would have taken all of 7 seconds for them to realise that I wasn't liable and they should get on with ordering the necessary parts! Erg, complete *****s![/rant]

    Seriously though if this does once again turn out to require a warranty call Toshiba would have ended up forking out as much for the repairs as a brand new G30 costs. :mad:
     
  8. Route44

    Route44 TechSpot Ambassador Posts: 12,166   +37

    You are about the 100th person that I have lately encountered that have been having issues with Toshiba, their warrenties, and finding parts. Toshiba was at one time known for their quality but that seems to be degrading. If you were having odd problems in the beginning it could be getting worse.

    As for faulty RAM, well it can cause tons of headaches and cause BSOD read-outs that don't seem to be related to corrupted memory but are. I would run a MemTest. Faulty video memory can be a culprit as well.

    Bad RAM can wreck havoc, but as you have pointed out they had to replace a number of things. I am suspicious that they only repaired your motherboard, but it could have been something minor. Still...
     
  9. Phantasm66

    Phantasm66 TS Rookie Posts: 6,504   +6

    I only buy cheap laptops, and then upgrade them with HDD and RAM that's reusable in another unit. If there was a major problem with a machine, I'd probably just bin it. Anyone I know who has returned a machine for repair has a horror story of some sort, no matter who the manufacturer was.
     
Topic Status:
Not open for further replies.


Add New Comment

TechSpot Members
Login or sign up for free,
it takes about 30 seconds.
You may also...


Get complete access to the TechSpot community. Join thousands of technology enthusiasts that contribute and share knowledge in our forum. Get a private inbox, upload your own photo gallery and more.