BSOD playing DotA 2, error 0x0000003b

Hi,

I randomly got BSOD when playing DotA 2 withe the error 0x0000003b
the mini dump are read as followings:

Crash Dump Analysis provided by OSR Open Systems Resources, Inc. (OSR Homepage - OSR)
Online Crash Dump Analysis Service
See OSR Online - The Home Page for Windows Driver Developers for more information
Windows 7 Kernel Version 7601 (Service Pack 1) MP (4 procs) Free x64
Product: WinNt, suite: TerminalServer SingleUserTS
Built by: 7601.17944.amd64fre.win7sp1_gdr.120830-0333
Machine Name:
Kernel base = 0xfffff800`0300a000 PsLoadedModuleList = 0xfffff800`0324e670
Debug session time: Sat Jun 14 06:06:33.338 2014 (UTC - 4:00)
System Uptime: 3 days 19:40:11.587
*******************************************************************************
* *
* 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: fffff8000313135f, Address of the instruction which caused the bugcheck
Arg3: fffff88004964b50, Address of the context record for the exception that caused the bugcheck
Arg4: 0000000000000000, zero.

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

TRIAGER: Could not open triage file : e:\dump_analysis\program\triage\modclass.ini, error 2

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

FAULTING_IP:
nt!MiIdentifyPfn+26f
fffff800`0313135f f0410fba6e481f lock bts dword ptr [r14+48h],1Fh

CONTEXT: fffff88004964b50 -- (.cxr 0xfffff88004964b50)
rax=0000000000000001 rbx=020000000007a337 rcx=0200000000000020
rdx=000000000006d2a7 rsi=0000000000000000 rdi=fffffa800bcb6700
rip=fffff8000313135f rsp=fffff88004965530 rbp=fffffa800c2f8d2a
r8=0000000000058168 r9=0000000000000001 r10=0000000000000042
r11=0000058000000000 r12=fffff800031fbe80 r13=0000000000000000
r14=e050fffffa800c2f r15=0000000000000000
iopl=0 nv up ei pl nz na po nc
cs=0010 ss=0018 ds=002b es=002b fs=0053 gs=002b efl=00010206
nt!MiIdentifyPfn+0x26f:
fffff800`0313135f f0410fba6e481f lock bts dword ptr [r14+48h],1Fh ds:002b:e050ffff`fa800c77=????????
Resetting default scope

CUSTOMER_CRASH_COUNT: 1

DEFAULT_BUCKET_ID: WIN7_DRIVER_FAULT

BUGCHECK_STR: 0x3B

PROCESS_NAME: svchost.exe

CURRENT_IRQL: 2

LAST_CONTROL_TRANSFER: from 0000000000000000 to fffff8000313135f

STACK_TEXT:
fffff880`04965530 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!MiIdentifyPfn+0x26f


FOLLOWUP_IP:
nt!MiIdentifyPfn+26f
fffff800`0313135f f0410fba6e481f lock bts dword ptr [r14+48h],1Fh

SYMBOL_STACK_INDEX: 0

SYMBOL_NAME: nt!MiIdentifyPfn+26f

FOLLOWUP_NAME: MachineOwner

MODULE_NAME: nt

DEBUG_FLR_IMAGE_TIMESTAMP: 503f82be

STACK_COMMAND: .cxr 0xfffff88004964b50 ; kb

IMAGE_NAME: memory_corruption

FAILURE_BUCKET_ID: X64_0x3B_nt!MiIdentifyPfn+26f

BUCKET_ID: X64_0x3B_nt!MiIdentifyPfn+26f

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

My laptop is Lenovo Y470 Win 7 64-bit originally 4gb ram and i add more 4 gb later. The VGA is GeForece GT 550M with updated driver. I got this BSOD error code several times while playing DoTA2 but not on other softwares. Lately, I have cleaned the fan, removed dust and inserted new VGA and CPU silicons. But the BSOD still occurred. Play advice the solution, thank you in advance.

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