computer keeps shutdown !!!

Aug 14, 2013
31
0
10,530
Hello guys, the last 4 days my computer keeps shuting down randomly and suddenly 2-3 times per day !!! the computer is new the only "old" part is HDD that is almost 7 years old and the graphic card.
Is there any possibility that is shutting down due to a faulty hard drive???
Just to mention the old drive has no OS i use ssd for my windows.

Specs :
mobo : gigabyte 990fxa ud5 rev 3.0
cpu : amd fx 8120 black edition
ram ; corsair vengeance 1600 mhz 8 g
SSD : ocz agility ( for operating system )
HDD : westernd digital 320g 7 years old ( keeps burping , strange sound slow open-read files)
psu : thermaltake smart 750 short circuit protection 80+ bronze
gpu : nvidia gts nv 250 1g