I still see memory corruption. Perhaps you have a bad motherboard?
Try running Memtest again. Download a copy of Memtest86 and burn the ISO to a CD using ImgBurn. Boot from the CD, and run at least 5 passes.
Code:
Microsoft (R) Windows Debugger Version 6.11.0001.404 AMD64
Copyright (c) Microsoft Corporation. All rights reserved.
Loading Dump File [C:\Users\Jonathan\Desktop\040310-13759-01.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
Executable search path is:
Windows 7 Kernel Version 7600 MP (4 procs) Free x64
Product: WinNt, suite: TerminalServer SingleUserTS
Built by: 7600.16385.amd64fre.win7_rtm.090713-1255
Machine Name:
Kernel base = 0xfffff800`02c02000 PsLoadedModuleList = 0xfffff800`02e3fe50
Debug session time: Sat Apr 3 20:32:47.960 2010 (GMT-4)
System Uptime: 0 days 14:32:40.802
Loading Kernel Symbols
...............................................................
................................................................
............................
Loading User Symbols
Loading unloaded module list
........
*******************************************************************************
* *
* Bugcheck Analysis *
* *
*******************************************************************************
Use !analyze -v to get detailed debugging information.
BugCheck 1A, {41287, 0, 0, 0}
Probably caused by : ntkrnlmp.exe ( nt! ?? ::FNODOBFM::`string'+42c75 )
Followup: MachineOwner
---------
0: kd> !analyze -v
*******************************************************************************
* *
* Bugcheck Analysis *
* *
*******************************************************************************
MEMORY_MANAGEMENT (1a)
# Any other values for parameter 1 must be individually examined.
Arguments:
Arg1: 0000000000041287, The subtype of the bugcheck.
Arg2: 0000000000000000
Arg3: 0000000000000000
Arg4: 0000000000000000
Debugging Details:
------------------
BUGCHECK_STR: 0x1a_41287
CUSTOMER_CRASH_COUNT: 1
DEFAULT_BUCKET_ID: VISTA_DRIVER_FAULT
PROCESS_NAME: taskhost.exe
CURRENT_IRQL: 0
TRAP_FRAME: fffff880031165a0 -- (.trap 0xfffff880031165a0)
NOTE: The trap frame does not contain all registers.
Some register values may be zeroed or incorrect.
rax=0000000000000000 rbx=0000000000000000 rcx=fffffa8000000000
rdx=0000000000000000 rsi=0000000000000000 rdi=0000000000000000
rip=fffff80002cbc028 rsp=fffff88003116738 rbp=fffffa8000000000
r8=0000000000000000 r9=0000000000000400 r10=0000000000000000
r11=0000000000000000 r12=0000000000000000 r13=0000000000000000
r14=0000000000000000 r15=0000000000000000
iopl=0 nv up ei pl zr na po nc
nt!MiPageMightBeZero+0x8:
fffff800`02cbc028 f60220 test byte ptr [rdx],20h ds:c000:00000000`00000000=??
Resetting default scope
LAST_CONTROL_TRANSFER: from fffff80002c1eb6e to fffff80002c73f00
STACK_TEXT:
fffff880`03116438 fffff800`02c1eb6e : 00000000`0000001a 00000000`00041287 00000000`00000000 00000000`00000000 : nt!KeBugCheckEx
fffff880`03116440 fffff800`02c71fee : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`0000000a : nt! ?? ::FNODOBFM::`string'+0x42c75
fffff880`031165a0 fffff800`02cbc028 : fffff800`02cbbefe fffffa80`039fa680 fffff800`02c79dda 00000000`00000246 : nt!KiPageFault+0x16e
fffff880`03116738 fffff800`02cbbefe : fffffa80`039fa680 fffff800`02c79dda 00000000`00000246 fffff800`02c821ed : nt!MiPageMightBeZero+0x8
fffff880`03116740 fffff800`02c87cc6 : fffffa80`045e1ec8 fffff880`03116990 00000000`00000000 00000000`00000000 : nt!MiFreeWsleList+0x43e
fffff880`03116930 fffff800`02cf4a0e : fffffa80`045e1ec8 fffff880`00000001 00000000`00000001 fffff880`03116bb0 : nt!MiAgeWorkingSet+0x3a6
fffff880`03116ae0 fffff800`02c886e2 : 00000000`000050ba 00000000`00000000 fffffa80`00000000 00000000`00000002 : nt! ?? ::FNODOBFM::`string'+0x49926
fffff880`03116b80 fffff800`02c8896f : 00000000`00000008 fffff880`03116c10 00000000`00000001 fffffa80`00000000 : nt!MmWorkingSetManager+0x6e
fffff880`03116bd0 fffff800`02f17166 : fffffa80`039fa680 00000000`00000080 fffffa80`0396c890 00000000`00000001 : nt!KeBalanceSetManager+0x1c3
fffff880`03116d40 fffff800`02c52486 : fffff880`02d63180 fffffa80`039fa680 fffff880`02d6dfc0 00000000`00000000 : nt!PspSystemThreadStartup+0x5a
fffff880`03116d80 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KxStartSystemThread+0x16
STACK_COMMAND: kb
FOLLOWUP_IP:
nt! ?? ::FNODOBFM::`string'+42c75
fffff800`02c1eb6e cc int 3
SYMBOL_STACK_INDEX: 1
SYMBOL_NAME: nt! ?? ::FNODOBFM::`string'+42c75
FOLLOWUP_NAME: MachineOwner
MODULE_NAME: nt
IMAGE_NAME: ntkrnlmp.exe
DEBUG_FLR_IMAGE_TIMESTAMP: 4a5bc600
FAILURE_BUCKET_ID: X64_0x1a_41287_nt!_??_::FNODOBFM::_string_+42c75
BUCKET_ID: X64_0x1a_41287_nt!_??_::FNODOBFM::_string_+42c75
Followup: MachineOwner
---------
0: kd> !analyze -v
*******************************************************************************
* *
* Bugcheck Analysis *
* *
*******************************************************************************
MEMORY_MANAGEMENT (1a)
# Any other values for parameter 1 must be individually examined.
Arguments:
Arg1: 0000000000041287, The subtype of the bugcheck.
Arg2: 0000000000000000
Arg3: 0000000000000000
Arg4: 0000000000000000
Debugging Details:
------------------
BUGCHECK_STR: 0x1a_41287
CUSTOMER_CRASH_COUNT: 1
DEFAULT_BUCKET_ID: VISTA_DRIVER_FAULT
PROCESS_NAME: taskhost.exe
CURRENT_IRQL: 0
TRAP_FRAME: fffff880031165a0 -- (.trap 0xfffff880031165a0)
NOTE: The trap frame does not contain all registers.
Some register values may be zeroed or incorrect.
rax=0000000000000000 rbx=0000000000000000 rcx=fffffa8000000000
rdx=0000000000000000 rsi=0000000000000000 rdi=0000000000000000
rip=fffff80002cbc028 rsp=fffff88003116738 rbp=fffffa8000000000
r8=0000000000000000 r9=0000000000000400 r10=0000000000000000
r11=0000000000000000 r12=0000000000000000 r13=0000000000000000
r14=0000000000000000 r15=0000000000000000
iopl=0 nv up ei pl zr na po nc
nt!MiPageMightBeZero+0x8:
fffff800`02cbc028 f60220 test byte ptr [rdx],20h ds:c000:00000000`00000000=??
Resetting default scope
LAST_CONTROL_TRANSFER: from fffff80002c1eb6e to fffff80002c73f00
STACK_TEXT:
fffff880`03116438 fffff800`02c1eb6e : 00000000`0000001a 00000000`00041287 00000000`00000000 00000000`00000000 : nt!KeBugCheckEx
fffff880`03116440 fffff800`02c71fee : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`0000000a : nt! ?? ::FNODOBFM::`string'+0x42c75
fffff880`031165a0 fffff800`02cbc028 : fffff800`02cbbefe fffffa80`039fa680 fffff800`02c79dda 00000000`00000246 : nt!KiPageFault+0x16e
fffff880`03116738 fffff800`02cbbefe : fffffa80`039fa680 fffff800`02c79dda 00000000`00000246 fffff800`02c821ed : nt!MiPageMightBeZero+0x8
fffff880`03116740 fffff800`02c87cc6 : fffffa80`045e1ec8 fffff880`03116990 00000000`00000000 00000000`00000000 : nt!MiFreeWsleList+0x43e
fffff880`03116930 fffff800`02cf4a0e : fffffa80`045e1ec8 fffff880`00000001 00000000`00000001 fffff880`03116bb0 : nt!MiAgeWorkingSet+0x3a6
fffff880`03116ae0 fffff800`02c886e2 : 00000000`000050ba 00000000`00000000 fffffa80`00000000 00000000`00000002 : nt! ?? ::FNODOBFM::`string'+0x49926
fffff880`03116b80 fffff800`02c8896f : 00000000`00000008 fffff880`03116c10 00000000`00000001 fffffa80`00000000 : nt!MmWorkingSetManager+0x6e
fffff880`03116bd0 fffff800`02f17166 : fffffa80`039fa680 00000000`00000080 fffffa80`0396c890 00000000`00000001 : nt!KeBalanceSetManager+0x1c3
fffff880`03116d40 fffff800`02c52486 : fffff880`02d63180 fffffa80`039fa680 fffff880`02d6dfc0 00000000`00000000 : nt!PspSystemThreadStartup+0x5a
fffff880`03116d80 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KxStartSystemThread+0x16
STACK_COMMAND: kb
FOLLOWUP_IP:
nt! ?? ::FNODOBFM::`string'+42c75
fffff800`02c1eb6e cc int 3
SYMBOL_STACK_INDEX: 1
SYMBOL_NAME: nt! ?? ::FNODOBFM::`string'+42c75
FOLLOWUP_NAME: MachineOwner
MODULE_NAME: nt
IMAGE_NAME: ntkrnlmp.exe
DEBUG_FLR_IMAGE_TIMESTAMP: 4a5bc600
FAILURE_BUCKET_ID: X64_0x1a_41287_nt!_??_::FNODOBFM::_string_+42c75
BUCKET_ID: X64_0x1a_41287_nt!_??_::FNODOBFM::_string_+42c75
Followup: MachineOwner
---------