Win 7 suddenly restarts, no error message

hello,

Some while ago I moved my PC into a new PC case, and from that point I've had some serious problems.
It all started with my PC no longer being able to start, after a trip to my local store, it seemed to be my graphics card and I've replaced my old Asus EAH5750 with a new Asus EAH 6670.
That seemed sorted, so I continued to use it for a day or so, when it suddenly gave me a blue screen (code: 0x000000c4(0x0000000000000091,0x0000000000000002,0xFFFFFA8009CBE780,0x0000000000000000))
At that point, I just reinstalled AMD Catalyst and the drivers, which solved that problem.
At the end of that day, my screen just changed to stripes of random colors for about a second, restarting after that. Then I bought a new harddrive(WD 1.0TB green caviar, 64 mb cache) and did a clean install of windows 7. Then I got the same restart thing from which this event log file is:Event log(It is Dutch, if you find anything important I can translate it for you, I don't know how to completely translate it).

Now I'm just desperate as I've tried nearly everything I can do.

If you would like for us to be able to effectively help you, we will need you to follow the Blue Screen of Death (BSOD) Posting Instructions Please be sure to do each step, as outlined in the tutorial. By doing this, we will have the necessary information to help you.

Im sorry, didn't think of that but here it is.
Also, I'm not getting BSOD's anymore, just restarts.
Anyway, thank you for the heads up

SOLVED!
old error by me, I had 2 sets of memory installed, one set of kingston ddr3-1333 valueram(2 modules, 4GB total) and one set of GEiL enhance corsa ddr3-1600(2 modules, 8GB total).
Took the valueram out and it works flawless.