Sorry to tell you but sometimes Verifier is an "iffy" Proposition. Sometimes it wont tell you which driver and you may need to keep running it. That is the situation here
Could not read faulting driver name
Probably caused by : ntkrnlmp.exe ( nt!ObReferenceObjectSafe+c )
Keep doing the things that make you crash and we will spot it.
thanks for all your help :)
Here are the last 3 days crash dumps, with verifier enabled.
Still getting the same symptoms - PC switched off for the day, switch it on and Windows loads. Log in, programs fail to start properly and explorer might crash, then a bluescreen within a moment or two. Today I restarted the PC from the login screen after leaving it "idling" for a few minutes, then logged in - same result of a bluescreen.
Switched the PC off completely and powered back on and it's now reliable again. I'm beginning to think that this is hardware related somewhere - I just can't figure out which bit!
Just noticed that the F7L Beta BIOS version is back available to download from the gigabyte website - is this worth trying do you think, or may it just complicate things further?
All three driver verified DMPS point to your video driver, or card. I would re-install it using this
When upgrading your graphic driver you MUST remove all traces of the current driver. In order to do that we recommend using Guru3D - Driver Sweeper
Or Phyxion.net - Driver Sweeper
When it is removed then download and install the fresh copy.
Code:Microsoft (R) Windows Debugger Version 6.11.0001.404 X86 Copyright (c) Microsoft Corporation. All rights reserved. Loading Dump File [C:\Users\K\Desktop\051911-16083-01.dmp] Mini Kernel Dump File: Only registers and stack trace are available Symbol search path is: SRV*C:\Symbols*http://msdl.microsoft.com/download/symbols;srv*e:\symbols *http://msdl.microsoft.com/download/symbols Executable search path is: Windows 7 Kernel Version 7601 (Service Pack 1) MP (8 procs) Free x64 Product: WinNt, suite: TerminalServer SingleUserTS Personal Built by: 7601.17592.amd64fre.win7sp1_gdr.110408-1631 Machine Name: Kernel base = 0xfffff800`03016000 PsLoadedModuleList = 0xfffff800`0325b650 Debug session time: Thu May 19 11:40:55.280 2011 (GMT-4) System Uptime: 0 days 0:02:43.124 Loading Kernel Symbols ............................................................... ................................................................ ....... Loading User Symbols Loading unloaded module list .... ******************************************************************************* * * * Bugcheck Analysis * * * ******************************************************************************* Use !analyze -v to get detailed debugging information. BugCheck C1, {fffff9801377cfc0, fffff9801377c8c0, d74040, 32} Unable to load image \SystemRoot\system32\DRIVERS\atikmdag.sys, Win32 error 0n2 *** WARNING: Unable to verify timestamp for atikmdag.sys *** ERROR: Module load completed but symbols could not be loaded for atikmdag.sys Probably caused by : atikmdag.sys ( atikmdag+568d4 ) Followup: MachineOwner --------- 6: kd> !analyze -v ******************************************************************************* * * * Bugcheck Analysis * * * ******************************************************************************* SPECIAL_POOL_DETECTED_MEMORY_CORRUPTION (c1) Special pool has detected memory corruption. Typically the current thread's stack backtrace will reveal the guilty party. Arguments: Arg1: fffff9801377cfc0, address trying to free Arg2: fffff9801377c8c0, address where one bit is corrupted Arg3: 0000000000d74040, (reserved) Arg4: 0000000000000032, caller is freeing an address where nearby bytes within the same page have a single bit error Debugging Details: ------------------ BUGCHECK_STR: 0xC1_32 SPECIAL_POOL_CORRUPTION_TYPE: 32 CUSTOMER_CRASH_COUNT: 1 DEFAULT_BUCKET_ID: VERIFIER_ENABLED_VISTA_MINIDUMP PROCESS_NAME: firefox.exe CURRENT_IRQL: 0 LAST_CONTROL_TRANSFER: from fffff8000311bfe3 to fffff80003095d00 STACK_TEXT: fffff880`08a18dd8 fffff800`0311bfe3 : 00000000`000000c1 fffff980`1377cfc0 fffff980`1377c8c0 00000000`00d74040 : nt!KeBugCheckEx fffff880`08a18de0 fffff800`03194a03 : fffff6fc`c00a1f40 fffff980`143e8920 00000000`00000000 00000000`00000001 : nt!MiCheckSpecialPoolSlop+0x83 fffff880`08a18e20 fffff800`031c093b : fffff800`03016000 00000000`494e494d 00000000`00072998 fffff880`08a19060 : nt!MmFreeSpecialPool+0x1d3 fffff880`08a18f60 fffff880`048948d4 : fffffa80`07321000 fffff800`0317c23b fffff980`13ff2000 fffff980`13ff2fa0 : nt!ExDeferredFreePool+0xf33 fffff880`08a19010 fffffa80`07321000 : fffff800`0317c23b fffff980`13ff2000 fffff980`13ff2fa0 fffff8a0`01eca0d0 : atikmdag+0x568d4 fffff880`08a19018 fffff800`0317c23b : fffff980`13ff2000 fffff980`13ff2fa0 fffff8a0`01eca0d0 fffff880`0486df57 : 0xfffffa80`07321000 fffff880`08a19020 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 fffff980`1377cfc0 : nt!VfAvlLookupTreeNode+0x9b STACK_COMMAND: kb FOLLOWUP_IP: atikmdag+568d4 fffff880`048948d4 ?? ??? SYMBOL_STACK_INDEX: 4 SYMBOL_NAME: atikmdag+568d4 FOLLOWUP_NAME: MachineOwner MODULE_NAME: atikmdag IMAGE_NAME: atikmdag.sys DEBUG_FLR_IMAGE_TIMESTAMP: 4d9bc6ec FAILURE_BUCKET_ID: X64_0xC1_32_VRF_atikmdag+568d4 BUCKET_ID: X64_0xC1_32_VRF_atikmdag+568d4 Followup: MachineOwner ---------
Ok,
I've uninstalled the graphics driver, run Driver Sweeper and cleaned all ATi and Creative driver remnants, rebooted and switched off Verifier.
I've just grabbed the latest driver from AMD and am going to install.
Thanks once again for your help Ken
Will see what happens over the course of the next few cold boots
Keep u s in the loop. If that doesnt fix it we can start lookng at your power profiles.Ok,
I've uninstalled the graphics driver, run Driver Sweeper and cleaned all ATi and Creative driver remnants, rebooted and switched off Verifier.
I've just grabbed the latest driver from AMD and am going to install.
Thanks once again for your help Ken
Will see what happens over the course of the next few cold boots
Well, 3 days later and about 4 or 5 cold boots and no blue screens
I'm not going to celebrate too soon, but this PC hasn't ever been this reliable yet!
Thankyou so much for your assistance, really appreciated
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