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I checked my rams with memtest86. But it found nothing.

I uploaded CPU-Z tabs

RAMMon v1.0 Build: 1015 built with SysInfo v1.0 Build: 1097
PassMark (R) Software

Memory Summary For FRAUDA
Number of Memory Devices: 2 Total Physical Memory: 8088 MB (8192 MB)
Total Available Physical Memory: 4674 MB
Memory Load: 42%

Item Slot #1 Slot #2 Slot #3 Slot #4
Ram Type DDR3 DDR3 Not Populated Not Populated
Maximum Clock Speed (MHz) 800 (JEDEC) 800 (JEDEC)
Maximum Transfer Speed (MHz) DDR3-1600 DDR3-1600
Maximum Bandwidth (MB/s) PC3-12800 PC3-12800
Memory Capacity (MB) 4096 4096
Jedec Manufacture Name Nanya Technology Nanya Technology
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SPD Revision 1.0 1.0
Registered No No
DIMM Slot # 1 2
Manufactured Week 19 of Year 2012 Week 19 of Year 2012
Module Part # M2S4G64CB8HG4N-DI M2S4G64CB8HG4N-DI
Module Revision 0x0 0x0
Module Serial # 0x31018E7 0x6D1118EA
Module Manufacturing Location 13 13
# of Row Addressing Bits 15 15
# of Column Addressing Bits 10 10
# of Banks 8 8
# of Ranks 2 2
Device Width in Bits 8 8
Bus Width in Bits 64 64
Module Voltage 1.5V 1.5V
CAS Latencies Supported 5 6 7 8 9 10 11 5 6 7 8 9 10 11
Timings @ Max Frequency (JEDEC) 11-11-11-28 11-11-11-28
Maximum frequency (MHz) 800 800
Maximum Transfer Speed (MHz) DDR3-1600 DDR3-1600
Maximum Bandwidth (MB/s) PC3-12800 PC3-12800
Minimum Clock Cycle Time, tCK (ns) 1.250 1.250
Minimum CAS Latency Time, tAA (ns) 13.125 13.125
Minimum RAS to CAS Delay, tRCD (ns) 13.125 13.125
Minimum Row Precharge Time, tRP (ns) 13.125 13.125
Minimum Active to Precharge Time, tRAS (ns) 35.000 35.000
Minimum Row Active to Row Active Delay, tRRD (ns) 6.000 6.000
Minimum Auto-Refresh to Active/Auto-Refresh Time, tRC (ns) 48.125 48.125
Minimum Auto-Refresh to Active/Auto-Refresh Command Period, tRFC (ns) 160.000 160.000
DDR3 Specific SPD Attributes
Write Recovery Time, tWR (ns) 15.000 15.000
Internal Write to Read Command Delay, tWTR (ns) 7.500 7.500
Internal Read to Precharge Command Delay, tRTP (ns) 7.500 7.500
Minimum Four Activate Window Delay, tFAW (ns) 30.000 30.000
RZQ / 6 Supported Yes Yes
RZQ / 7 Supported Yes Yes
DLL-Off Mode Supported Yes Yes
Maximum Operating Temperature Range (C) 0-95 0-95
Refresh Rate at Extended Operating Temperature Range 2X 2X
Auto-self Refresh Supported Yes Yes
On-die Thermal Sensor Readout Supported No No
Partial Array Self Refresh Supported No No
Thermal Sensor Present No No
Non-standard SDRAM Type Standard Monolithic Standard Monolithic
Module Height (mm) 30 30
Module Thickness (front), (mm) 2 2
Module Thickness (back), (mm) 2 2
Module Width (mm) 67.6 67.6
Reference Raw Card Used Raw Card F Rev. 2 Raw Card F Rev. 2
DRAM Manufacture Nanya Technology Nanya Technology


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*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *

Use !analyze -v to get detailed debugging information.

BugCheck 1A, {41790, fffffa8002573070, ffff, 0}

Probably caused by : ntkrnlmp.exe ( nt! ?? ::FNODOBFM::`string'+33da4 )

Followup: MachineOwner
as your probably aware the above Bugcheck means a severe memory management issue occurred. Checking the sub type (which type of Bugcheck 1A) tells us that it's possibly a driver although bad or faulty memory cannot be ruled out.
Checking through your drivers I noticed a couple of possible 'culprits':

dtscsibus.sys Mon Oct 29 09:28:48 2012: DAEMON Tools Virtual SCSI Bus Driver. Likely BSOD cause in Windows systems. Un-install to test.

360AntiHacker64.sys Wed Apr 09 09:48:35 2014: 360 Anti-Virus. A possible cause uninstall to test. Use MSE as it's ultra stable (you can always re-install 360 later)

Laptop drivers are supplied by the manufacturer and looking through your support page i see there are updates available including the Bigfoot Internet driver:

bflwfx64.sys Thu Jun 14 17:01:42 2012: Bigfoot Networks Bandwidth Control Wireless NDIS Light Weight Filter driver. Please update (please check I have the correct support page for your machine): 64

Please apply anything else that appears later the your current version. You can use Device manager to check driver versions.

If you've recently updated something or added anything new then view it with suspicion.

If you try the above changes and your still getting the same bsod then you'll need to run Memtest86 again. Memtest86 should be run for at least 12hrs or longer if possible unless of course it's obvious there's an issue. Even then I've known cases where memtest86 still didn't pick up an error. In these cases one can try checking RAM by running on a single stick at a time. If the machine blue screens swop sticks and try again. See if there's a stick which doesn't bsod and in which case you'll then know which stick or sticks are good and which is the bad.
Post any new dump files.

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