BSOD after 5 min working

Both errors are 0x000000F4: CRITICAL_OBJECT_TERMINATION
One of the many processes or threads crucial to system operation has unexpectedly exited or been terminated. As a result, the system can no longer function. Specific causes are many, and often best resolved by a careful history of the problem and the circumstances of the error message.


In both dumps the driver cited as your issue is wininit.exe This link gives excellent information on what it is and does: http://www.ehow.com/about_5079045_wininit-exe.html

* By the way, excellent cpu.
 
Back