User’s Manual - 25

Copyright(c) 2004, Sun Microsystems, Inc. All rights reserved.
Specification
Preset Timing Modes
Table 1. Preset Timing 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)
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 46.875 75.000 49.500 +/+
VESA, 800 x 600 48.077 72.188 50.000 +/+
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, 1280 x 1024 63.981 60.020 108.00 +/+
VESA, 1280 x 1024 79.976 75.025 135.00 +/+
SUN, 1152 x 900 61.846 66.003 94.500 -/-
SUN, 1152 x 900 71.810 76.150 108.00 -/-
SUN, 1280 x 1024 81.129 76.106 135.00 -/-
Horizontal Frequency
The time to scan one line connecting the right edge to the left
edge of the screen horizontally is called Horizontal Cycle and the
inverse number of the Horizontal Cycle is called Horizontal
Frequency. Unit: kHz
Vertical Frequency
Like a fluorescent lamp. the screen has to repeat the same image
many times per second to display an image to the user. The
frequency of this repetition is called Vertical Frequency or Refresh
Rate. Unit: Hz