BSOD ntoskrnl.exe with different bug check strings every time

BSODs occur randomly, but most often when the computer is first started cold in the morning. It generally happens several times in a row and usually within 30 seconds of reaching the desktop; other times windows does not make it to the desktop at all. This HAS occurred in safe-mode with networking turned on as well.

The bug check codes and strings are all over the place; I'm getting a mix of everything. BlueScreenView is showing ntoskrnl.exe in red for every crash even if it was not listed as the cause.

After troubleshooting for a while in safe mode I will randomly get a stable boot and the computer will run all day long (16+ hours playing games and running Microsoft Office with no issue).

Temperatures seem very low; I have some pretty beastly cooling for my setup and crashes aren't occurring more often under load or more often as the computer runs for a longer period of time. Ambient temperatures are 65 - 70 F.

I ran memtest86 v4.3.7 for 4.5 hours with no errors.

I rolled my graphics card driver back to the previous version I was using before the crashes started; no dice. BUT there have been many recent drivers released. I could continue to roll it back.

I have run Malware Bytes, AVG Free, and Kaspersky TDSSKiller scans; nothing found.

I'm sure not all of my drivers are up to date, but I wouldn't even know where to start because there are so many.

Thank you for the help in advance. I appreciate it.

Please run the dm log collector again, there are some important files missing.

Uninstall AVG while troubleshooting and use Microsoft Security Essentials as alternative
AVG - Uninstall Completely
Microsoft Security Essentials - Microsoft Windows

Code:

fffff880`0a372798  fffff880`043a9cf5Unable to load image \SystemRoot\system32\DRIVERS\avgidsdrivera.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for avgidsdrivera.sys
*** ERROR: Module load completed but symbols could not be loaded for avgidsdrivera.sys
 avgidsdrivera+0x20cf5

Update your USB network adapter through the manufacturer of the USB if possible.
Always keep USB network adapter drivers up to date, because they sometimes could cause network problems.

Code:

fffff880`02f8c808  fffff880`06608a01Unable to load image \SystemRoot\system32\DRIVERS\athurx.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for athurx.sys
*** ERROR: Module load completed but symbols could not be loaded for athurx.sys
 athurx+0x4a01
2: kd> lmvm athurx
start             end                 module name
fffff880`06604000 fffff880`067e2000   athurx   T (no symbols)           
    Loaded symbol image file: athurx.sys
    Image path: \SystemRoot\system32\DRIVERS\athurx.sys
    Image name: athurx.sys
    Timestamp:        Wed Apr 20 12:07:45 2011 (4DAEB071)
    CheckSum:         001E1C78
    ImageSize:        001DE000
    Translations:     0000.04b0 0000.04e4 0409.04b0 0409.04e4

For the 0x4E and

Code:

MODULE_NAME: memory_corruption

IMAGE_NAME:  memory_corruption

FOLLOWUP_NAME:  memory_corruption

MemTest86+ is different from MemTest86 and MemTest86+ is better then MemTest86 with DDR3 what most users have.

Diagnostic Test

 RAM TEST

Run MemTest86+ to analyse your RAM. MemTest86+ - Test RAM - Windows 7 Forums

   Note

MemTest86+ needs to be run for at least 8 passes for conclusive results. Set it running before you go to bed and leave it overnight. We're looking for zero errors here. Even a single error will indicate RAM failure.

What are the model and make of the sticks?

When you test your memory with MemTest86+, straight 8 complete passes are needed for conclusive results. Less is simply a waste of time.

Please try MemTest86+ on a different bootable USB with all the modules.

To answer your question, MemTest86+ supports DDR2.