MSI 7850 problems or not ?

George92

Honorable
Sep 13, 2013
17
0
10,520
Hello.
Recently my pc gets a strange screen and some buzzers in my speakers and then restart or just black screen, restart and some beeps from motherboard ( one long and three short ) and it does not restart untill i turn off the power supply and then on. I read on the internet that on Gigabyte motherboards one long buzzer and three short means that it is a problem from the graphics.
Can't understand what's the problem, it just happens when playing DOTA 2, Left for dead 2 orFar Cry 3 . (not that i played other games too much)
Can anyone tell what could be the problem ?

My pc :
Phenom II x4 965
Motherboard Name Gigabyte GA-780T-D3L v4
MSI 7850 OC 1GB single fan
4Gb ram Zeppelin (one plate)
Sirtec power eco 450w

P.S.I don't have any overclock on anything.
Thanks in advance.