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