Windows 7: BSOD while playing games, error 0x00000008?

Hello,
Recently I have been plagued by the BSOD, but only while I am in a game (skyrim, borderlands 2, crysis). This happens randomly during gameplay within minutes to hours. Recently I installed 2 sticks of 4gb ram and got a xbox controller and all the drivers are up to date, but memtest86 found errors. Sometimes it goes to the BSOD, but others it just hangs on the screen and I am forced to hard restart. Heres a minidump file (.zip). Thanks for the help.
-howey55

Just ran memtest 86 4.20 and found some more errors.

RAM - Test with Memtest86+

Each stick of RAM is fine after 6 passes each in slot 1, and each slot tested with no errors with one DIMM, but once all 4 DIMMs of ram are tested together i get errors. I just dont know what the errors mean. Does this mean that my memory slots on my mobo are bad??
appreciate some help... thanks.

PS the ram is all the same G skill Ripjaws 1600 4gb x4

After multiple days of memtest only 4 errors are coming up. None of the DIMMs have errors by themselves only when all 4 are in the memory slots. Strange thing is that I had 119 errors on the first pass, then tested the memory DIMMs individually and now only get 4 errors. Any ideas?