The memory is failing either because of wrong bios settings or because of a defect. This is 100% for sure, as this Microsoft driver would never cause a bsod here as shown in one of your crashes:
Conclusion: Definite RAM issue 100%.
Code:
Use !analyze -v to get detailed debugging information.
BugCheck 19, {3, fffffa8003961430, fffffa8003961430, fffffa8003921430}
Unable to load image \SystemRoot\system32\DRIVERS\MpFilter.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for MpFilter.sys
*** ERROR: Module load completed but symbols could not be loaded for MpFilter.sys
Probably caused by : Pool_Corruption ( nt!ExDeferredFreePool+a56 )
Followup: Pool_corruption
---------
3: kd> lmvm mpfilter
start end module name
fffff880`02ae5000 fffff880`02b12000 MpFilter T (no symbols)
Loaded symbol image file: MpFilter.sys
Image path: \SystemRoot\system32\DRIVERS\MpFilter.sys
Image name: MpFilter.sys
Timestamp: Sat Mar 20 01:58:08 2010 (4BA463F0)
CheckSum: 00035D12
ImageSize: 0002D000
Translations: 0000.04b0 0000.04e4 0409.04b0 0409.04e4
Conclusion: Definite RAM issue 100%.