BSOD in COD4 & BF:BC2

Whenever i play Call of Duty 4 or Battlefield: Bad Company 2 i get a BSOD within 30-60min of gameplay.
I Recently reinstalled windows 7 and havn't had trouble with BSOD on this computer witch is about 2 years old. Also since i got my new HDD i have sudden short freezes for 3-6 sec. when i empty trash can or open a movie or during a movie and such.
I acctually never gets BSOD when playing thease 2 games, it just freezes and sound is like repeating over and over. I wait for 3-4min and no BSOD so i reset my PC and i open BlueScreenView and it says: The problem seems to be caused by the follow file: Ntoskrnl.exe.

A video of someone having same freeze as me:
YouTube - Weird Call of Duty 4 Freeze & "trrrrr" sound (hard freeze, no auto reboot)

I hope you can help me!

I have tried the following:
Windows Memtest.
Playing with only 1 stick RAM.
Reinstalling and updating Punkbuster.
Updating & resetting BIOS.
Take out CPU, RAM, GPU and put them back in after removing dust.
Setup Realtek HD Audio Manager like i used to do when COD4 "stopped working" (Cod4 and Realtek onboard sound is not very good friends).
Change Anti-virus program from Windows Security Essentials to NOD32
Run chkdsk.exe (HDD error-checker)

SPEC:
Windows 7 Ultimate x64
Asus P5Q Pro Motherboard
Intel Core 2 Duo E8500 @ 3,16GHz
Corsair Dominator 2x2 GB (cm2x2048-8500c5d)
Gainward GeForce GTX 260
Samsung HD103SJ 1000 GB 7200 RPM (Main HDD)
Samsung HD103UJ 1000GB
Western Digital 1000GB
Corsair TX650 PSU

Code:

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


Loading Dump File [C:\localsymbols\030711-16816-01.dmp]
Mini Kernel Dump File: Only registers and stack trace are available

Symbol search path is: SRV*localsymbols*http://msdl.microsoft.com/download/symbols
Executable search path is: 
Windows 7 Kernel Version 7600 MP (2 procs) Free x64
Product: WinNt, suite: TerminalServer SingleUserTS
Built by: 7600.16695.amd64fre.win7_gdr.101026-1503
Machine Name:
Kernel base = 0xfffff800`02c4d000 PsLoadedModuleList = 0xfffff800`02e8ae50
Debug session time: Mon Mar  7 23:03:37.438 2011 (UTC + 1:00)
System Uptime: 0 days 0:00:09.984
Loading Kernel Symbols
.................................................
Loading User Symbols
Mini Kernel Dump does not contain unloaded driver list
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck 124, {0, fffffa80052a5038, 0, 0}

Probably caused by : hardware

Followup: MachineOwner
---------

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

WHEA_UNCORRECTABLE_ERROR (124)
A fatal hardware error has occurred. Parameter 1 identifies the type of error
source that reported the error. Parameter 2 holds the address of the
WHEA_ERROR_RECORD structure that describes the error conditon.
Arguments:
Arg1: 0000000000000000, Machine Check Exception
Arg2: fffffa80052a5038, Address of the WHEA_ERROR_RECORD structure.
Arg3: 0000000000000000, High order 32-bits of the MCi_STATUS value.
Arg4: 0000000000000000, Low order 32-bits of the MCi_STATUS value.

Debugging Details:
------------------


BUGCHECK_STR:  0x124_GenuineIntel

CUSTOMER_CRASH_COUNT:  1

DEFAULT_BUCKET_ID:  VISTA_DRIVER_FAULT

PROCESS_NAME:  System

CURRENT_IRQL:  0

STACK_TEXT:  
fffff880`02fe06b0 fffff800`02f07a99 : fffffa80`052a5010 fffffa80`039f1680 fffff8a0`00000003 00000000`00000001 : nt!WheapCreateLiveTriageDump+0x6c
fffff880`02fe0bd0 fffff800`02de9677 : fffffa80`052a5010 fffff800`02e625f8 fffffa80`039f1680 00000003`00000005 : nt!WheapCreateTriageDumpFromPreviousSession+0x49
fffff880`02fe0c00 fffff800`02d51c45 : fffff800`02ec4360 fffffa80`0491d228 fffffa80`0491d220 fffffa80`039f1680 : nt!WheapProcessWorkQueueItem+0x57
fffff880`02fe0c40 fffff800`02cca961 : fffff880`01035e00 fffff800`02d51c20 fffffa80`039f1680 00000000`00000000 : nt!WheapWorkQueueWorkerRoutine+0x25
fffff880`02fe0c70 fffff800`02f607c6 : 00000000`0002d9c3 fffffa80`039f1680 00000000`00000080 fffffa80`039b8740 : nt!ExpWorkerThread+0x111
fffff880`02fe0d00 fffff800`02c9bc26 : fffff880`009e9180 fffffa80`039f1680 fffff880`009f3f40 02000000`000bcb0f : nt!PspSystemThreadStartup+0x5a
fffff880`02fe0d40 00000000`00000000 : fffff880`02fe1000 fffff880`02fdb000 fffff880`037aa550 00000000`00000000 : nt!KxStartSystemThread+0x16


STACK_COMMAND:  kb

FOLLOWUP_NAME:  MachineOwner

MODULE_NAME: hardware

IMAGE_NAME:  hardware

DEBUG_FLR_IMAGE_TIMESTAMP:  0

FAILURE_BUCKET_ID:  X64_0x124_GenuineIntel_PROCESSOR_BUS_PRV

BUCKET_ID:  X64_0x124_GenuineIntel_PROCESSOR_BUS_PRV

Followup: MachineOwner
---------

1: kd> lmvm hardware
start             end                 module name
Mini Kernel Dump does not contain unloaded driver list
1: kd> .reload
Loading Kernel Symbols
.................................................
Loading User Symbols
Mini Kernel Dump does not contain unloaded driver list