Your error is 0x7E: SYSTEM_THREAD_EXCEPTION_NOT_HANDLED
A system thread generated an exception which the error handler did not catch.
There are numerous individual causes for this problem, including hardware incompatibility, a faulty device driver or system service, or some software issues. Check Event Viewer (EventVwr.msc) for additional information.
Your DeBug log kept pointing memory corruption no less than 5 times. Even though you upgraded your memory I suggest you run MemTest on your RAM for a minimum of 7 passes. Also, run Event Viewer and if you can post the information do so.