Your error is 0x50: PAGE_FAULT_IN_NONPAGED_AREA
Requested data was not in memory. An invalid system memory address was referenced. Defective memory (including main memory, L2 RAM cache, video RAM) or incompatible software (including remote control and antivirus software) might cause this Stop message, as may other hardware problems (e.g., incorrect SCSI termination or a flawed PCI card).
Unfortunantly it only cited a Windows driver and they are too general to be of much help. The minidump went on to say it could not read the faulting driver.
However, under the PROCESS_NAME section it cited rthdcpl.exe which is a process/driver belonging to the Realtek HD Audio Control Panel and is bundled alongside Realtek sound cards and audio hardware such as onboard sound.
I have had sound card drivers that were out of date that caused my system to crash when playing games. Your motherboard's website might have updated drivers for your onboard sound or visit your sound card manufacturer if you have a sound card and update from them. I am not saying this is your issue but it would be a good diagnostic step to take.
* Let us know if this brings stability.