Dell guarantees image size and centering for all preset modes listed in the following table.
Preset Display Modes
| Horizontal | Vertical | Pixel Clock | Sync Polarity |
| (Horizontal / | |||
Display Mode | Frequency (kHz) | Frequency (Hz) | (MHz) | Vertical) |
DOS 720 x 400 | 31.5 | 70.1 | 28.3 | |
VGA 640 x 480 | 31.5 | 60.0 | 25.18 | |
VESA 640 x 480 | 37.5 | 75.0 | 31.5 | |
VESA 800 x 600 | 37.9 | 60.3 | 40.0 | +/+ |
VESA 800 x 600 | 46.9 | 75.0 | 49.5 | +/+ |
VESA 1024 x 768 | 48.4 | 60.0 | 65.0 | |
VESA 1024 x 768 | 60.0 | 75.0 | 78.8 | +/+ |
VESA 1152 x 864 | 67.5 | 75.0 | 108.0 | +/+ |
VESA 1280 x 1024 | 64.0 | 60.0 | 108.0 | +/+ |
VESA 1280 x 1024 | 80.0 | 75.0 | 135.0 | +/+ |
Electrical
Video input signals Synchronization input signals
AC input voltage / frequency / current
Inrush current at 110 V
Inrush current at 220 V
Analog RGB, 0.7 Volts
separate horizontal and vertical;
3.3V Cmos or 5V TTL level, positive or negative sync.
100 ~240 VAC/ 50 ~ 60 Hz
2A (RMS) max
30 A max
60 A max