PC Output Timing Relative Value Chart
[Model | Vertical Position [Horizontal Position
IBM 640 X 350 at 70 Hz/
-25-
+25
-28 - +26
-50 - +90
IBM 640 X 400 at 70 Hz
IBM 640 X 480 at 60 Hz
-25 — +25
-28 — +26
-50 — +90
VESA 640 X 400 at 85 Hz
VESA 640 X 480 at 85 He
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