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.
Table 1. Preset Timing Modes
Display Mode
Horizontal
Frequency
(kHz)
Vertical
Frequency
(Hz)
Pixel Clock
(MHz)
Sync Polarity
(H/V)
IBM, 640 x 480
31.469
59.940
25.175
-/-
IBM, 720 x 400
31.469
70.087
28.322
-/+
VESA, 640 x 480
43.269
85.008
36.000
-/-
VESA, 800 x 600
46.875
75.000
49.500
+/+
VESA, 800 x 600
53.674
85.061
56.250
+/+
VESA, 1024 x 768
60.023
75.029
78.750
+/+
VESA, 1024 x 768
68.677
84.997
94.500
+/+
VESA, 1280 x 1024
79.976
75.025
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
SyncMaster 765MB
