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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.
Table 1. Preset Timing Modes
General
PowerSaver
Display Mode
Preset Timing
Modes
IBM, 640 x 350
IBM, 640 x 480
IBM, 720 x 400
MAC, 640 x 480
MAC, 832 x 624
VESA, 640 x 480
VESA, 640 x 480
VESA, 800 x 600
VESA, 800 x 600
VESA, 800 x 600
VESA, 800 x 600
VESA, 1024 x 768
VESA, 1024 x 768
VESA, 1024 x 768
VESA, 1280 x 1024
VESA, 1280 x 1024
SUN, 1280 x 1024
Horizontal
Vertical
Frequency
Frequency
(kHz)
(Hz)
31,469
70.086
31.469
59.940
31.469
70.087
35.000
66.667
49.726
74.551
37.500
75.000
37.861
72.809
35.156
56.250
37.879
60.317
46.875
75.000
48.077
72.188
48.363
60.004
56.476
70.069
60.023
75.029
63.981
60.020
79.976
75.025
81.129
76.106
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
English > Main > Specification > Preset Timing Modes
Pixel Clock
(MHz)
25.175
25.175
28.322
30.240
57.284
31.500
31.500
36.000
40.000
49.500
50.000
65.000
75.000
78.750
108.00
135.00
135.00
Sync Polarity
(H/V)
+/-
-/-
-/+
-/-
-/-
-/-
-/-
+,-/+,-
+/+
+/+
+/+
-/-
-/-
+/+
+/+
+/+
-/-
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