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Windows 7: Help Please

03 Jul 2010   #31

Windows 7 Ultimate 32 bit


Usual causes: Device driver, kernel, hardware
Microsoft (R) Windows Debugger Version 6.11.0001.404 X86
Copyright (c) Microsoft Corporation. All rights reserved.

Loading Dump File [C:\Users\Owner\Downloads\070310-24343-01.dmp]
Mini Kernel Dump File: Only registers and stack trace are available

Symbol search path is: SRV*c:\symbols*Symbol information
Executable search path is: 
Windows 7 Kernel Version 7600 MP (4 procs) Free x64
Product: WinNt, suite: TerminalServer SingleUserTS Personal
Built by: 7600.16539.amd64fre.win7_gdr.100226-1909
Machine Name:
Kernel base = 0xfffff800`02c4b000 PsLoadedModuleList = 0xfffff800`02e88e50
Debug session time: Sat Jul  3 15:23:04.856 2010 (GMT-4)
System Uptime: 0 days 0:14:33.684
Loading Kernel Symbols
Loading User Symbols
Loading unloaded module list
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *

Use !analyze -v to get detailed debugging information.

BugCheck 18, {0, fffffa8005f52900, 2, ffffffffffffffff}

Probably caused by : ntkrnlmp.exe ( nt! ?? ::FNODOBFM::`string'+46451 )

Followup: MachineOwner

1: kd> !analyze -v
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *

Arg1: 0000000000000000, Object type of the object whose reference count is being lowered
Arg2: fffffa8005f52900, Object whose reference count is being lowered
Arg3: 0000000000000002, Reserved
Arg4: ffffffffffffffff, Reserved
    The reference count of an object is illegal for the current state of the object.
    Each time a driver uses a pointer to an object the driver calls a kernel routine
    to increment the reference count of the object. When the driver is done with the
    pointer the driver calls another kernel routine to decrement the reference count.
    Drivers must match calls to the increment and decrement routines. This bugcheck
    can occur because an object's reference count goes to zero while there are still
    open handles to the object, in which case the fourth parameter indicates the number
    of opened handles. It may also occur when the objectís reference count drops below zero
    whether or not there are open handles to the object, and in that case the fourth parameter
    contains the actual value of the pointer references count.

Debugging Details:




PROCESS_NAME:  svchost.exe


LAST_CONTROL_TRANSFER:  from fffff80002c52fac to fffff80002cbb600

fffff880`02bfc428 fffff800`02c52fac : 00000000`00000018 00000000`00000000 fffffa80`05f52900 00000000`00000002 : nt!KeBugCheckEx
fffff880`02bfc430 fffff800`02fb7f09 : fffff880`02bfcca0 fffff880`02bfc7d8 00000000`00000017 00000000`00000006 : nt! ?? ::FNODOBFM::`string'+0x46451
fffff880`02bfc490 fffff800`02fb87d6 : 00000000`00000001 00001f80`00000000 fffff8a0`00000001 00000000`00000001 : nt!ObpWaitForMultipleObjects+0x2d3
fffff880`02bfc960 fffff800`02cba853 : fffffa80`05f45060 00000000`004efb38 fffff880`02bfcbc8 fffff880`02bfcc00 : nt!NtWaitForMultipleObjects+0xe5
fffff880`02bfcbb0 00000000`7747046a : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KiSystemServiceCopyEnd+0x13
00000000`004efb18 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : 0x7747046a


nt! ?? ::FNODOBFM::`string'+46451
fffff800`02c52fac cc              int     3


SYMBOL_NAME:  nt! ?? ::FNODOBFM::`string'+46451

FOLLOWUP_NAME:  MachineOwner


IMAGE_NAME:  ntkrnlmp.exe


FAILURE_BUCKET_ID:  X64_0x18_nt!_??_::FNODOBFM::_string_+46451

BUCKET_ID:  X64_0x18_nt!_??_::FNODOBFM::_string_+46451

Followup: MachineOwner
This dump doesn't tell us much except that it points to hardware or drivers.

To answer your question, yes, it could be the motherboard; but I would have expected some different error codes if it were the motherboard. I am still leaning toward the video card based on what I have seen.

My System SpecsSystem Spec
03 Jul 2010   #32

Windows 7 Home Premium 64 bit

Thanks Carl. I think I'll see if I can swap graphics cards with a mate and see what happens. PC does seem to be much more stable with catalyst 10.6s' but i want it 100% stable. MSI have asked me to try another card before they send me a new bios. I will let you know what happens.
My System SpecsSystem Spec
03 Jul 2010   #33

Windows 7 Ultimate 32 bit

Thanks for the update. Let us know how another video card does.
My System SpecsSystem Spec

04 Jul 2010   #34

Windows 7 Home Premium 64 bit

I've put in an old 1900xt for the time being so will see how that goes. Could the sort of artifacting I've been getting be caused by a faulty power supply? Just want to rule everything else out before I go down the RMA route. I bought the PSU at the same time as the card. It's an Antec Truepower New 650 watt. Would be strange as the PC runs 3d perfectly fine though.
My System SpecsSystem Spec
04 Jul 2010   #35

Windows 7 Professional x64

Antec is a reputable brand, but every product has a certain risk of failure.

If the PSU is faulty, it can result in random errors difficult to diagnose. BSODs are a possibility.

If you have another PSU to test, for it.
My System SpecsSystem Spec
04 Jul 2010   #36

Windows 7 Home Premium 64 bit

Well it doesn't look like its the graphics card. I haven't had the artifacts again but computer has been locking up in windows and even in bios. I won't be able to test power supply until I bring my volt meter back from work Tuesday. Is there any software which can monitor voltages accurately? The CPU is fairly new so I don't think it could be that. I have run memtest overnight and it found no problems but I am running with just one stick of RAM to see what happens. which component do you think is the chief suspect?
My System SpecsSystem Spec
04 Jul 2010   #37

Windows 7 Ultimate 32 bit

Do you have any new dmp files? I have to suspect hardware since you are having problems in BIOS.
My System SpecsSystem Spec
05 Jul 2010   #38

Windows 7 Home Premium 64 bit

Hi Carl. Unfortunately the crash didn't create a dmp file. Since I have only been running with one stick of RAM so far the system has been stable. I ran memtest overnight and no errors were found. I will run it with the other stick tonight. Could the system be struggling to run 800mhz dual channel mode with ATI cards? If so could it cause crashes like I have been experiencing? It ran 800mhz fine with nvidia. Would it be worth running 667mhz and see if its stable? I noticed in BIOS that my motherboard won't allow me to enter the correct timings either. My memory is CM2X2048-6400C5DHX which should run at 5-5-5-18. I can only set 5-5-5-15. Was never a problem previously but I am wondering whether The ATI cards are fussier. I can rule out the power supply tomorrow when I can pick my volt meter up. Could intel speedstep cause issues like this? Sort of plucking at straws now!
My System SpecsSystem Spec
05 Jul 2010   #39

Windows 7 Ultimate 32 bit

I would say that since you are stable with one stick, the indication is definitely a RAM problem. We will know more when you test the other stick.

When you start asking about the capabilities of your board and its effect, you are out of my area of limited expertise. I am not a hardware guy. If your system is struggling to run your RAM, yes it can definitely trigger crashes. I have never delved into RAM voltages, overclocking, under clock, etc. But there are some good hardware folks here. I will post a call for help with your questions. Stay tuned.
My System SpecsSystem Spec
05 Jul 2010   #40

Microsoft Community Contributor Award Recipient


1) Check your PSU.

2) Clear your BIOS. Clear CMOS - 3 Ways to Clear the CMOS - Reset BIOS
My System SpecsSystem Spec

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