Weird crash - Advanced User - Pulling my short and curlies out over this!

Alright, I hate registering for forums to make a few short posts... but now that it's been a month since this crash started I can't do anything but ask for help.

What I've done to fix the crash :

Backed up files
Formatted (full format) of all hard drives
disk check of all hard drives
Formatted with HFS+ (mac) and used disk utility scan
Reformatted and reinstalled Windows 7 Signature (Ultimate)
Installed updated chipset drivers from Gigabyte
Installed Realtek drivers from Gigabyte, then Realtek
Installed nVidia drivers from nVidia
Installed drivers for keyboard/mouse
Installed all updates

Installed WoW
Installed Steam + Medal of Honor 2010


Ran Memtest from UBCD
Ran Windows Memory Test
Both Pass
Reset BIOS removing any overclock
Set RAM to DDR3 1600 (Corsair XMS 1600)
Made sure on board VGA (ATI somethingcrappywithsideportjoke) was off


Reinstalled Windows on fresh 750 GB WD

Did everything I listed


Installed Windows 7 SDK Debugger with Symbols


----------------Dump Starts Here--------------------------------------------------------------------
Microsoft (R) Windows Debugger Version 6.12.0002.633 AMD64
Copyright (c) Microsoft Corporation. All rights reserved.

Loading Dump File [C:\Windows\MEMORY.DMP]
Kernel Summary Dump File: Only kernel address space is available

Symbol search path is: SRV*C:\SymCache*
Executable search path is:
Windows 7 Kernel Version 7601 (Service Pack 1) MP (4 procs) Free x64
Product: WinNt, suite: TerminalServer SingleUserTS
Built by: 7601.17514.amd64fre.win7sp1_rtm.101119-1850
Machine Name:
Kernel base = 0xfffff800`02e52000 PsLoadedModuleList = 0xfffff800`03097e90
Debug session time: Thu Apr 7 16:49:57.582 2011 (UTC - 4:00)
System Uptime: 0 days 1:32:27.096
Loading Kernel Symbols
Loading User Symbols
PEB is paged out (Peb.Ldr = 00000000`7efdf018). Type ".hh dbgerr001" for details
Loading unloaded module list
* *
* Bugcheck Analysis *
* *

Use !analyze -v to get detailed debugging information.

BugCheck 50, {fffff87ff92f3f89, 8, fffff87ff92f3f89, 5}

Probably caused by : ntkrnlmp.exe ( nt! ?? ::FNODOBFM::`string'+44891 )

Followup: MachineOwner

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

Invalid system memory was referenced. This cannot be protected by try-except,
it must be protected by a Probe. Typically the address is just plain bad or it
is pointing at freed memory.
Arg1: fffff87ff92f3f89, memory referenced.
Arg2: 0000000000000008, value 0 = read operation, 1 = write operation.
Arg3: fffff87ff92f3f89, If non-zero, the instruction address which referenced the bad memory
Arg4: 0000000000000005, (reserved)

Debugging Details:

WRITE_ADDRESS: fffff87ff92f3f89

fffff87f`f92f3f89 ?? ???






TRAP_FRAME: fffff880099f58f0 -- (.trap 0xfffff880099f58f0)
NOTE: The trap frame does not contain all registers.
Some register values may be zeroed or incorrect.
rax=000000000000fffe rbx=0000000000000000 rcx=0000000000002c28
rdx=0000000000000000 rsi=0000000000000000 rdi=0000000000000000
rip=fffff87ff92f3f89 rsp=fffff880099f5a80 rbp=fffffa8007ae4430
r8=0000000000000000 r9=0000000000010000 r10=fffff8a0003a3000
r11=fffffa8008964180 r12=0000000000000000 r13=0000000000000000
r14=0000000000000000 r15=0000000000000000
iopl=0 nv up ei pl nz ac pe cy
fffff87f`f92f3f89 ?? ???
Resetting default scope

LAST_CONTROL_TRANSFER: from fffff80002e7cc6f to fffff80002ed2640

fffff880`099f5788 fffff800`02e7cc6f : 00000000`00000050 fffff87f`f92f3f89 00000000`00000008 fffff880`099f58f0 : nt!KeBugCheckEx
fffff880`099f5790 fffff800`02ed076e : 00000000`00000008 fffff87f`f92f3f89 00000000`00000000 fffff8a0`00133390 : nt! ?? ::FNODOBFM::`string'+0x44891
fffff880`099f58f0 fffff87f`f92f3f89 : fffff8a0`084b8ed0 fffffa80`07d30010 00000000`00000000 00000000`00000702 : nt!KiPageFault+0x16e
fffff880`099f5a80 fffff8a0`084b8ed0 : fffffa80`07d30010 00000000`00000000 00000000`00000702 fffffa80`07ae44e0 : 0xfffff87f`f92f3f89
fffff880`099f5a88 fffffa80`07d30010 : 00000000`00000000 00000000`00000702 fffffa80`07ae44e0 00000000`0000ffff : 0xfffff8a0`084b8ed0
fffff880`099f5a90 00000000`00000000 : 00000000`00000702 fffffa80`07ae44e0 00000000`0000ffff fffff8a0`084b8a90 : 0xfffffa80`07d30010


nt! ?? ::FNODOBFM::`string'+44891
fffff800`02e7cc6f cc int 3


SYMBOL_NAME: nt! ?? ::FNODOBFM::`string'+44891



IMAGE_NAME: ntkrnlmp.exe


FAILURE_BUCKET_ID: X64_0x50_nt!_??_::FNODOBFM::_string_+44891

BUCKET_ID: X64_0x50_nt!_??_::FNODOBFM::_string_+44891

Followup: MachineOwner


I've contacted Valve asking them to take a look at the dump and see if it's something to do with Steam. Otherwise - I have uninstalled Steam, and MoH which I JUST bought 2 days ago. Any ideas? Does it seem like Steam doesnt like 8gb of memory? Or SLI enabled on a non SLI board? I used the SLI with 2x GTS450 for a loooong time before this started crashing. Seems to be Steam - but maybe I'm missing something. RAM is good - I even contacted Corsair and asked them about what I should do. They said that I can try boosting some voltage, since my board may not be delivering the required amount. Still crash, voltage was okay but I gave it a little boost to try it. The Phenom 2 x4 I'm using passes all stress tests, and 3D Mark 11 and 06 will run straight through no problem. Sound drivers are fine.

Any ideas? :) TYVM

It might be quite helpful looking at your recent crash dumps, as well as at your memory settings.

I don't think Steam has much to do with your crashes, altough it's mentioned in the crash dump. It doesn't look like Steam has caused it.

As for 8Gb, I too have 8Gb and Steam runs fine.

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