E–39Timing ChartY NTSC 640 480 60 15.734 -Y PAL 768 576 50 15.625 -Y SECAM 768 576 50 15.625 -Y VESA 640 480 59.94 31.47 25.175Y IBM 640 480 60 31.47 25.175Y MAC 640 480 60 31.47 25.175Y MAC 640 480 66.67 34.97 31.334Y MAC 640 480 66.67 35 30.24Y VESA 640 480 72.81 37.86 31.5Y VESA 640 480 75 37.5 31.5Y IBM 640 480 75 39.375 31.49Y VESA 640 480 85.01 43.269 36Y IBM 720 350 70.09 31.469 28.322Y VESA 720 400 85.04 37.927 35.5Y IBM 720 350 87.85 39.44 35.5Y IBM 720 400 87.7 39.375 35.5Y VESA 800 600 56.25 35.16 36Y VESA 800 600 60.32 37.879 40Y VESA 800 600 72.19 48.077 50Y VESA 800 600 75 46.88 49.5Y VESA 800 600 85.06 53.674 56.25#Y MAC 832 624 74.55 49.725 57.283#Y VESA 1024 768 43 Interlaced 35.5 44.9#Y VESA 1024 768 60 48.363 65#Y VESA 1024 768 70.07 57.476 75#Y IBM 1024 768 72.03 58.131 79#Y MAC 1024 768 74.93 60.241 80#Y VESA 1024 768 75.03 60.023 78.75#Y VESA 1024 768 85 68.677 94.5##Y VESA 1152 864 75 67.5 108##Y MAC 1152 870 75.06 68.681 100##Y SUN 1152 900 65.95 61.796 92.94##Y SGI 1152 900 76.05 71.736 105.6##Y VESA 1280 960 60 60 108##Y SGI 1280 1024 60 63.9 107.35##Y VESA 1280 1024 60.02 63.981 108##Y MAC 1280 1024 60.38 64.31 107##Y MAC 1280 1024 65.2 69.9 118.5##Y HP 1280 1024 72.01 78.125 135##Y SUN 1280 1024 76.11 81.13 135##Y VESA 1280 1024 75.03 79.976 135##Y VESA 1280 1024 85.02 91.146 157.5##Y HDTV (1080i) 1920 1080 60 Interlace 33.75 74.25##Y HDTV (720p) 1280 720 60 Progressive 45 74.25##Y SDTV (480p) 720 483 59.94 Progressive 31.47 27Y / N SignalResolution Refresh Rate Frequency H. Dot Clock( Dots ) ( Hz ) ( kHz ) ( MHz )#Y: Images in above flagged with # and Y are compressed with Advanced AccuBlend on VT440.##Y: Images in above flagged with ## and Y are compressed with Advanced AccuBlend on VT540.NOTE1: Some composite sync signals may not be displayed correctly.NOTE2: Signals other than those specified in the table above may not be displayed correctly. If this should happen, change the refreshrate or resolution on your PC. Refer to Display Properties help section of your PC for procedures.