Question Frequent crash with some minor artifact

[Rockyly]

I got crash randomly,sometimes it takes seconds to crash, sometimes it's not crash at all.i'm so confused, Pls help me
(sorry for bad English)
My gpu Temp is around 70-81 C

My spec:
fx 8300 Stock
His iceQ RX 480
8gb ram
Asrock 770icafe
corsair VS450 W

 

[Metal Messiah.]

What kind of CRASH ? Do you get any error message as well ? Are you using Windows 10 OS ? When does the PC crash, while playing Games, or even in idle desktop mode ?

Can you post a screenshot of those "artifacts" ?

 

[Rockyly]

What kind of CRASH ? Do you get any error message as well ? Are you using Windows 10 OS ? When does the PC crash, while playing Games, or even in idle desktop mode ?

Can you post a screenshot of those "artifacts" ?

The screen goes black,sometimes the screen becomes like a barcode but full colour
i using win 7, The Pc crash when i play games and in idle desktop mode
i'll try to get the photo of it next time it crashes

 

[Metal Messiah.]

I think your GPU might be faulty as well.