BSOD crash System exception error

hello all. i just recently completed the build on a customer build. at random times i will get a bsod crash and restart. the error says system exception error at the top of the BSOD and computer goes memory dump and system restart. it is an intermittment issue and definitely a little computer savvy.

System specs

AMD Athlon II X4 635 Propus 2.9GHz Socket AM3 95W Quad-Core ASUS M4A79XTD EVO AM3 AMD 790X ATX Seagate Barracuda 7200.12 ST31000528AS 1TB 7200 RPM SATA 3.0Gb/s 3.5 G.SKIL 1 GB 240-Pin DDR3 SDRAM DDR3 1333 x 4 Rosewill BRONZE series RBR1000-M 1000W EVGA 01G-P3-1158-TR GeForce GTS 250 1GB 256-bit DDR3 PCI

Exp Much help appreciated
matt

Hi,
Your dump have error code :
0x3b = indicates that an exception happened while executing a routine that transitions from non-privileged code to privileged code.
0x7E = usually cause by drivers.

Start with removing avast and replace it with MSE , because I see avast driver involved in the crash.

Code:

Use !analyze -v to get detailed debugging information.
BugCheck 1000007E, {ffffffffc0000005, fffff88002abf2a3, fffff88006772a98, fffff88006772300}
Probably caused by : aswMonFlt.sys ( aswMonFlt+52a3 )

Perform system file checker because your windows services crashed or stopped in an unsupported way.
--> command prompt(as admin) -> sfc /scannow

Update these drivers :

Code:

AsIO.sys     Mon Dec 17 01:11:49 2007 --> Asus PCProbe Utility
Rt64win7.sys Fri May 22 07:52:30 2009 --> realtek NIC

Log

Code:

*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck 3B, {c0000005, fffff80002ac56e0, fffff8800a3ecec0, 0}

Probably caused by : ntkrnlmp.exe ( nt!KiSystemServiceHandler+7c )

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

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

SYSTEM_SERVICE_EXCEPTION (3b)
An exception happened while executing a system service routine.
Arguments:
Arg1: 00000000c0000005, Exception code that caused the bugcheck
Arg2: fffff80002ac56e0, Address of the exception record for the exception that caused the bugcheck
Arg3: fffff8800a3ecec0, Address of the context record for the exception that caused the bugcheck
Arg4: 0000000000000000, zero.

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


EXCEPTION_CODE: (NTSTATUS) 0xc0000005 - The instruction at "0x%08lx" referenced memory at "0x%08lx". The memory could not be "%s".

FAULTING_IP: 
nt!ObfReferenceObject+20
fffff800`02ac56e0 f0480fc11f      lock xadd qword ptr [rdi],rbx

CONTEXT:  fffff8800a3ecec0 -- (.cxr 0xfffff8800a3ecec0)
rax=fffff8a006930ad0 rbx=0000000000000001 rcx=0080000000000000
rdx=0000000000000000 rsi=0000000000000000 rdi=007fffffffffffd0
rip=fffff80002ac56e0 rsp=fffff8800a3ed890 rbp=fffff8800a3ed998
 r8=0000000000000000  r9=0080000000000000 r10=0000000000000005
r11=0000000000000011 r12=fffff8a006930ad0 r13=0000000000000000
r14=0000000000000000 r15=0000000000000000
iopl=0         nv up ei pl zr na po nc
cs=0010  ss=0018  ds=002b  es=002b  fs=0053  gs=002b             efl=00010246
nt!ObfReferenceObject+0x20:
fffff800`02ac56e0 f0480fc11f      lock xadd qword ptr [rdi],rbx ds:002b:007fffff`ffffffd0=????????????????
Resetting default scope

CUSTOMER_CRASH_COUNT:  1

DEFAULT_BUCKET_ID:  VISTA_DRIVER_FAULT

BUGCHECK_STR:  0x3B

PROCESS_NAME:  TrustedInstall

CURRENT_IRQL:  0

LAST_CONTROL_TRANSFER:  from 0000000000000000 to fffff80002ac56e0

STACK_TEXT:  
fffff880`0a3ec5f8 fffff800`02ab8ca9 : 00000000`0000003b 00000000`c0000005 fffff800`02ac56e0 fffff880`0a3ecec0 : nt!KeBugCheckEx
fffff880`0a3ec600 fffff800`02ab85fc : fffff880`0a3ed658 fffff880`0a3ecec0 00000000`00000000 fffff800`02ae7c90 : nt!KiBugCheckDispatch+0x69
fffff880`0a3ec740 fffff800`02adf40d : fffff800`02cd993c 00000000`00000000 fffff800`02a49000 fffff880`0a3ed658 : nt!KiSystemServiceHandler+0x7c
fffff880`0a3ec780 fffff800`02ae6a90 : fffff800`02c091a0 fffff880`0a3ec7f8 fffff880`0a3ed658 fffff800`02a49000 : nt!RtlpExecuteHandlerForException+0xd
fffff880`0a3ec7b0 fffff800`02af39ef : fffff880`0a3ed658 fffff880`0a3ecec0 fffff880`00000000 007fffff`ffffffd0 : nt!RtlDispatchException+0x410
fffff880`0a3ece90 fffff800`02ab8d82 : fffff880`0a3ed658 00000000`00000001 fffff880`0a3ed700 00000000`00000000 : nt!KiDispatchException+0x16f
fffff880`0a3ed520 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KiExceptionDispatch+0xc2


STACK_COMMAND:  kb

FOLLOWUP_IP: 
nt!KiSystemServiceHandler+7c
fffff800`02ab85fc b801000000      mov     eax,1

SYMBOL_STACK_INDEX:  2

SYMBOL_NAME:  nt!KiSystemServiceHandler+7c

FOLLOWUP_NAME:  MachineOwner

MODULE_NAME: nt

IMAGE_NAME:  ntkrnlmp.exe

DEBUG_FLR_IMAGE_TIMESTAMP:  4c1c44a9

FAILURE_BUCKET_ID:  X64_0x3B_nt!KiSystemServiceHandler+7c

BUCKET_ID:  X64_0x3B_nt!KiSystemServiceHandler+7c

Followup: MachineOwner

thank you very much for the help attempting fixes over the next couple days. will let you know how it turns out