Frequent, seeminly random BSOD, poss. ntoskrnl.exe?

[Juicepusher]

Hi Guys,

I have been reading different forums trying to get some help but it has been fruitless, so I am now a registered user.
I have a custom built computer (Built in 2012) that originally worked great and now has issues. I have been gone for a year so it may have started sooner or wasn't something my dad noticed

So, enough preemble, this is what's wrong:
I kept getting random program crashes and sometimes BSODs (but never read them out). I now reinstalled Windows (deleted old partitions, created them new and formatted them) and all programs fresh too.
At first, things went fine (Format was on Friday) but as you can see from the attached mini dumps, the BSODs are becoming more frequent. I tried reading them out with the win debug tool and BlueScreenView but only got as far as them blaming ntoskrnl.exe and linking to svchost.exe.
I tried memtest86+ overnight, it completed 7 passes without errors, but then the computer crashed 3-4 times this morning already again while i was copying lightroom (photo) databases. Yesterday it crashed on wake. Sometimes it crashes during a game. Or browsing. The minidumps do not reflect the crashes, since some somehow didn't seem to get saved.
As you can see, I am getting desperate. It seems like a possible memory issue but not reliable enough to make sure it is that. Could be mainboard or a combination. I would welcome any hints as to the problem or a possible solution.

thanks a lot

Juice

 

[Boozad]

We need more than just the dump files to analyse your logs, follow http://www.sevenforums.com/bsod-help-support/96879-blue-screen-death-bsod-posting-instructions.html and upload the new logs.

 

[Juicepusher]

here you go.
the last 2-3 dumps hinted at a memory issue, but running on either stick right now seems fine. Maybe it is the second memory slot that is the culprit. Will try switching to the other 2 banks tomorrow.