BSOD on Windows 7 Ultimate need help reading the minidumps

[darkpipo]

When I play a videogame the screen suddenly gets frozen and have to push the restart button to be able to use it again. The actual blue screen has never come up but when I reboot the pc there's a screen that comes up and says that I had a system crash and that it's a blue screen error. There are somedays that don't get any system crash.
I have windows 7 ultimate,32 bit
Pentium 4 3 GHz Dual core
Nvidia GeForce 6200
2 GB ram

I attached the minidumps so I would really appreciate if someone helped me out

 

[Mark56]

These minidumps all state bug check code 124, please follow this guide to help find the problem.

First and foremost turn on Automatic Update as your system is not up to date, you should be on SP1 by now. In the guide it suggests updating the Bios, don't do this unless you are confident with the procedure as when done wrong you could make your PC unbootable.

http://www.sevenforums.com/crash-lockup-debug-how/35349-stop-0x124-what-means-what-try.html