freezes anywhere anytime

mariocyprus

Honorable
Aug 29, 2014
107
2
10,685
hello guys, I have built a computer with all the pieces are new, but I have a problem, while working normally freezes anywhere anytime and I can not do anything, only press power button.
What is problem ? some part or operating system ? (Win 8.1 pro) 64 bit.

CPU - AMD FX-6350 3.9GHZ 6-CORE
PSU - CORSAIR VS SERIES VS550 - 550W
MOTHERBOARD - ASUS M5A97 R2.0
RAM - CORSAIR VENGEANCE 8GB (2X4GB) PC3-15000 DUAL CHANNEL KIT 1866Mhz
GPU - VGA ASUS RADEON R7 260X R7260X-OC-2GD5 2GB GDDR5
HDD - TOSHIBA DT01ACA050 500GB SATA3