BSOD while playing Dota 2

Currently experienced BSOD while playing Dota 2, this happened just now.
I am abit worried that this could happen again in the future, so i wanted to isolate the culprit of this problem as soon as possible.

Before the bluescreen happened, my in game audio became weird producing a buzzing sound then BSOD.
I am confused on what caused this, because on other games i never experienced this.

Here's my system specs:
CPU: i5 4670
Board: MSI z87 GD-65 GAMING
GPU: HD6850
RAM: G.Skill 2 x 2gb DDR3 1333

Screenshot taken from BlueScreenView:



I have attached the file taken from SF_Diagnostic_Tool.

Some info is missing.

Run this bat file as administrator - it will place a zip folder to your desktop. Upload it in your next reply.

Attachment 300525

Code:

Host Name:                 INTES-PC
OS Name:                   Microsoft Windows 7 Ultimate 
OS Version:                6.1.7600 N/A Build 7600
OS Manufacturer:           Microsoft Corporation
OS Configuration:          Standalone Workstation
OS Build Type:             Multiprocessor Free
Registered Owner:          INTES
Registered Organization:   
Product ID:                00426-OEM-8992662-00400

Install a genuine version of Windows 7 to minimise issues with your system - a Dell OEM installed to a retail motherboard violates the EULa and is considered a counterfeit installation. You will have less issues if you use genuine software.