Problem with my Evga GTX 280

Guys need really help . I bought 2 years ago my EVGA GTX 280 . All was fine .I was play for about year without artifacts CRYSIS, COD 4 , 5, GTA IV , ALL GAMES JUST ALL GAMES. And other games was OK . maybe 50 titles...

But yesterday i installed NFS SHIFT .. and what???? On some races i see a flickering black lines or points , i now that is bad for my card. SOme races are ok , but some NOT. Just see flickering artifacts black or red llines . Black points. SOmetimes are all ok sometimes not . MY card was never overclocked. I never OC . All are defaults. FAn speed is too default 40 % . I never changed this. So why artifacts only in NFS SHIFT???????
Crysis or Crysis WARHEAD are OK all fine i dont see artitfacts. Just only 1 game of 100 i was see artifatcs. NFS SHIFT. why?????? So this is problem in game , drivers>?????

182.06 forcewars ....... so what now ??? RMA card? But what guys in shop can tell ? If only 1 game artifacts there is no reason to RMA ? Guys What you think ? PLEASE HELP???? RMA Card or change FAN SPEED on default clock ? What is safe or what no ?


Just in : Bioshock , Cod 4 , COd 5 , GTA IV , CRYSIS , CRYSIS WARHEAD , FEAR , FEAR 2 , Wolverine , DOOm 3 , Juarez 2 , Stalker all is OK and fine . And other titles... is ok


ALso run now FurMark , stability test...and i see 86 C on max..... without aritfacts ..so very strange..