BSOD random, usualy while playing dota2

BSOD started 2-3 months ago. Sometimes 4-5 times per day. Sometimes oce-twice in week. But most times while I was playing Dota2. It shows up like standard BSOD and sometimes it freez my screen.. 5 to 10 min then I just restart my PC. With BSOD came 1 more problem.. The browser crash. "Opera" and "Google Chrome" are crashing 200times per day.. It's so annoying.

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7601.2.1.0.256.1
Locale ID: 9242

Additional information about the problem:
BCCode: 124
BCP1: 0000000000000000
BCP2: FFFFFA8004782038
BCP3: 00000000BE000000
BCP4: 0000000000800400
OS Version: 6_1_7601
Service Pack: 1_0
Product: 256_1

Files that help describe the problem:
C:\Windows\Minidump\050915-13384-01.dmp
C:\Users\Korisnik\AppData\Local\Temp\WER-51199-0.sysdata.xml

This 2 red colored files are not in my PC.. Can't find them.

http://www.filedropper.com/korisnik-pc-xxxxzip <-- My pc details.

Guys why are u skiping me?