A.1 APPENDIX
Display Modes

If the signal from the system equals the standard signal mode, the screen is adjusted

automatically. If the signal from the system doesn’t equal the standard signal mode,

adjust the mode by referring to your Videocard user guide; otherwise there may be no

video. For the display modes listed below, the screen image has been optimized during

manufacture.

APPENDIX

Mode Resolution Horizontal

Frequency

(kHz)

Vertical

Frequency

(Hz)

Pixel

Clock

Frequency

(MHz)

Sync Polarity

(H/V)

MAC
640✕480
640✕480
800✕600
720✕400
640✕480
640✕480
800✕600
800✕600
800✕600
1024✕768
1024✕768
1024✕768
1280✕768
31.469
35.000
49.726
31.469
37.861
37.500
37.879
48.077
46.875
48.363
56.476
60.023
47.700
59.940
66.667
74.551
70.087
72.809
75.000
60.317
72.188
75.000
60.004
70.069
75.029
60.000
25.175
30.240
57.284
28.322
31.500
31.500
40.000
50.000
49.500
65.000
75.000
78.750
80.136
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VESA
IBM
GTF