UDK - Bsod : help with windbg

[RedSpider]

Trying to figure this out and have trouble, Geting bsod when i run the editor seems to be random.

Win 7 pro
i7 3770k
Asus Gtx 670(top) Driver = 310.90 - 2013.01.05
Corsair 16g Memory

Here is the winbdg log

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

IRQL_NOT_LESS_OR_EQUAL (a)
An attempt was made to access a pageable (or completely invalid) address at an
interrupt request level (IRQL) that is too high.  This is usually
caused by drivers using improper addresses.
If a kernel debugger is available get the stack backtrace.
Arguments:
Arg1: 0000000000000008, memory referenced
Arg2: 0000000000000002, IRQL
Arg3: 0000000000000001, bitfield :
	bit 0 : value 0 = read operation, 1 = write operation
	bit 3 : value 0 = not an execute operation, 1 = execute operation (only on chips which support this level of status)
Arg4: fffff80002ef681c, address which referenced memory

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


WRITE_ADDRESS: GetPointerFromAddress: unable to read from fffff80003116100
 0000000000000008 

CURRENT_IRQL:  2

FAULTING_IP: 
nt!MiInsertPageInFreeOrZeroedList+4ec
fffff800`02ef681c 4c895d08        mov     qword ptr [rbp+8],r11

CUSTOMER_CRASH_COUNT:  1

DEFAULT_BUCKET_ID:  VISTA_DRIVER_FAULT

BUGCHECK_STR:  0xA

PROCESS_NAME:  System

TRAP_FRAME:  fffff880009a9930 -- (.trap 0xfffff880009a9930)
NOTE: The trap frame does not contain all registers.
Some register values may be zeroed or incorrect.
rax=0000058000000000 rbx=0000000000000000 rcx=000000000007ff39
rdx=0000000000000000 rsi=0000000000000000 rdi=0000000000000000
rip=fffff80002ef681c rsp=fffff880009a9ac0 rbp=0000000000000000
 r8=0000000000000001  r9=2aaaaaaaaaaaaaab r10=0000fffffffff000
r11=fffff80003119500 r12=0000000000000000 r13=0000000000000000
r14=0000000000000000 r15=0000000000000000
iopl=0         nv up ei pl zr na po nc
nt!MiInsertPageInFreeOrZeroedList+0x4ec:
fffff800`02ef681c 4c895d08        mov     qword ptr [rbp+8],r11 ss:0018:00000000`00000008=????????????????
Resetting default scope

LAST_CONTROL_TRANSFER:  from fffff80002ee6569 to fffff80002ee6fc0

STACK_TEXT:  
fffff880`009a97e8 fffff800`02ee6569 : 00000000`0000000a 00000000`00000008 00000000`00000002 00000000`00000001 : nt!KeBugCheckEx
fffff880`009a97f0 fffff800`02ee51e0 : 00000000`00000000 00000000`00000000 00000000`00000000 fffffa80`017fdab0 : nt!KiBugCheckDispatch+0x69
fffff880`009a9930 fffff800`02ef681c : 00000000`00000000 fffff800`02ea9d8e fffffa80`017fdab0 00000000`0007ff39 : nt!KiPageFault+0x260
fffff880`009a9ac0 ffffcd46`dba3fbb8 : fffff800`00b96080 00000000`00000000 fffff800`03365c40 fffff800`00812f40 : nt!MiInsertPageInFreeOrZeroedList+0x4ec
fffff880`009a9bd0 fffff800`00b96080 : 00000000`00000000 fffff800`03365c40 fffff800`00812f40 00000000`00000001 : 0xffffcd46`dba3fbb8
fffff880`009a9bd8 00000000`00000000 : fffff800`03365c40 fffff800`00812f40 00000000`00000001 fffff800`0317de5a : 0xfffff800`00b96080


STACK_COMMAND:  kb

FOLLOWUP_IP: 
nt!MiInsertPageInFreeOrZeroedList+4ec
fffff800`02ef681c 4c895d08        mov     qword ptr [rbp+8],r11

SYMBOL_STACK_INDEX:  3

SYMBOL_NAME:  nt!MiInsertPageInFreeOrZeroedList+4ec

FOLLOWUP_NAME:  MachineOwner

MODULE_NAME: nt

DEBUG_FLR_IMAGE_TIMESTAMP:  503f82be

IMAGE_NAME:  memory_corruption

FAILURE_BUCKET_ID:  X64_0xA_nt!MiInsertPageInFreeOrZeroedList+4ec

BUCKET_ID:  X64_0xA_nt!MiInsertPageInFreeOrZeroedList+4ec

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

BlueScreenView

Caused by ntoskrnl.exe+7efc0

Last thing in the udk log

[0044.31] Log: Encountered missing default brush - spawning new one
[0044.54] Log: -- Checking Building LODs
[0044.54] Log: Primary PhysX scene will be in software.
[0044.54] Log: Creating Primary PhysX

Any idea ?