I have intel pentium 4 With 3 .01G hz pro 1gb ram 128mb vedio ram 50gb hard disk space Intel integrated grafic 910gl Its an old pc Can i run half life 2 on this pc without lag I tried to run some cracked version but it lagged so much 2 fps.will it run smoothly if i try offline version .or if i try first released mod of half life 2