From what I can see from the bug analysis, it looks as though a driver is causing the problem - the driver could be using too much memory, using the wrong memory etc etc.
Debug session time: Mon Nov 5 12:13:16.349 2012 (UTC + 11:00)
Loading Dump File [C:\Users\MZ\SysnativeBSODs\110412-31371-01.dmp]
System Uptime: 0 days 9:20:39.681
BugCheck D1, {1c, 2, 0, fffffa800b644178}
Probably caused by : ntkrnlmp.exe ( nt!KiPageFault+260 )
Bugcheck code 000000d1
Arguments:
Arg1: 000000000000001c, memory referenced
Arg2: 0000000000000002, IRQL
Arg3: 0000000000000000, value 0 = read operation, 1 = write operation
Arg4: fffffa800b644178, address which referenced memory
DEFAULT_BUCKET_ID: VISTA_DRIVER_FAULT
BUGCHECK_STR: 0xD1
PROCESS_NAME: System
FAILURE_BUCKET_ID: X64_0xD1_nt!KiPageFault+260
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨``
Debug session time: Wed Oct 31 13:53:32.694 2012 (UTC + 11:00)
Loading Dump File [C:\Users\MZ\SysnativeBSODs\103012-31949-01.dmp]
System Uptime: 0 days 6:46:03.958
BugCheck D1, {1c, 2, 0, fffffa800b906f28}
Probably caused by : ntkrnlmp.exe ( nt!KiPageFault+260 )
Bugcheck code 000000d1
Arguments:
Arg1: 000000000000001c, memory referenced
Arg2: 0000000000000002, IRQL
Arg3: 0000000000000000, value 0 = read operation, 1 = write operation
Arg4: fffffa800b906f28, address which referenced memory
DEFAULT_BUCKET_ID: VISTA_DRIVER_FAULT
BUGCHECK_STR: 0xD1
PROCESS_NAME: System
FAILURE_BUCKET_ID: X64_0xD1_nt!KiPageFault+260
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨``
Looking at the driver list, there are a few drivers that are out of date and some drivers that are potential problems.
Link Removed - Invalid URL Wed Jul 28 2010
This is your webcam driver that dates back to
2010. Webcam drivers are related to BSOD errors, and I assume (from the last update date) that you don't use the webcam often. So, uninstall the software unless you actually plan to use it later on.
http://www.carrona.org/drivers/driver.php?id=WDKMD.sys Thu Dec 23 2010
This is Intel's Wireless Display driver, which has also been known to cause BSODs. AND it was last updated in 2010. So, like the previous driver I mentioned, uninstall this (or if you use a wireless monitor/screen then update it to the latest version).
Link Removed - Invalid URL Mon Dec 12 2011
This is a Bluetooth driver from Intel. Windows 7 doesn't like bluetooth devices or drivers (in my personal experience anyway). It was last updated almost a year ago, so I'm also assuming you don't use bluetooth that often. Even if you do, I suggest you uninstall all bluetooth related devices and drivers, and see if that fixed the problem.
http://www.carrona.org/drivers/driver.php?id=NETwNs64.sys Tue Dec 13 2011
Although this is a WiFi driver, it has been known to cause crashes in Windows 7. Also being updated almost a year ago, like the 3 previous drivers I mentioned before, uninstall it.
You have 2 outdated USB controllers - they have been known to cause BSODs, and they were updated over a year ago.
Driver Reference Table - nusb3hub.sys Driver Reference Table - nusb3xhc.sys so uninstall those two as well.
Although this is probably not the cause, uninstall NOD32 (your current AntiVirus) and instead use
Microsoft Security Essentials - Microsoft Windows (which is a more used AV software).
Also:
Driver Reference Table -TuneUpUtilitiesDriver64.sys Thu Sep 17 2009
This was downloaded in 2009, so uninstall it (or if you bought the full version [in my opinion you shouldn't, to me it's a rip off] then update it to the latest software).
From your original post, you say you ran Memtest86+ for 2 passes. I suggest running it for at least 8. Leave it running overnight, and look back at it in the morning - if it's the physical memory that's causing the problem, it'd show up.
The memory reference could also be pointing towards your Hard drive, so run
HD Tune website overnight (DO NOT RUN MEMTEST AND HDTUNE TOGETHER [in my experience it's not as reliable], RUN THEM ONE NIGHT AT A TIME) and see if it shows any errors.
Attached is the compressed folder which contains all the information which I believe are needed (files from W7F diagnostic tool, the pictures of CPU-Z and the HTML report of PassMark RAMMon), but if I am missing something then please let me know.
