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Preset Timin
g
Modes
If the signal transferred from the computer is the same as the following Preset Timing Modes, the
screen will be adjusted automatically. However, if the signal differs, the screen may go blank while
the power LED is on. Refer to the video card manual and adjust the screen as follows.
Display Mode
Horizontal
Frequency
(kHz)
Vertical
Frequency
(Hz)
Pixel Clock
(MHz)
Sync
Polarity
(H/V)
MAC, 640 x 480 35.000 66.667 30.240 -/-
MAC, 832 x 624 49.726 74.551 57.284 -/-
MAC,1152 x 870 68.681 75.062 100.000 -/-
IBM, 640 x 350 31.469 70.086 25.175 +/-
IBM, 640 x 480 31.469 59.940 25.175 -/-
IBM, 720 x 400 31.469 70.087 28.322 -/+
VESA, 640 x 480 37.500 75.000 31.500 -/-
VESA, 640 x 480 37.861 72.809 31.500 -/-
VESA, 800 x 600 35.156 56.250 36.000 +/+
VESA, 800 x 600 37.879 60.317 40.000 +/+
VESA, 800 x 600 48.077 72.188 50.000 +/+
VESA, 800 x 600 46.875 75.000 49.500 +/+
VESA, 1024 x 768 48.363 60.004 65.000 -/-
VESA, 1024 x 768 56.476 70.069 75.000 -/-
VESA, 1024 x 768 60.023 75.029 78.750 +/+
VESA, 1152 x 864 67.500 75.000 108.000 +/+
VESA 1280 x 960 60.000 60.000 108.000 +/+
VESA, 1280 x 1024 79.976 75.025 135.000 +/+
VESA, 1680 x 1050 64.674 59.883 119.000 +/-
Horizontal Frequency
The time to scan one line connecting the right edge to the left edge of the
screen horizontally is called the Horizontal Cycle and the inverse number
of the Horizontal Cycle is called the Horizontal Frequency.Unit : kHz