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Apple Display Connector
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==Pin 3 and 11== Power is supplied to the ADC port by an additional finger connector on the video card, which plugs into a slot on the motherboard between the AGP slot and the back panel of the computer; on G4 Macs, some power is also sent through AGP pins 3 and 11. When ADC was introduced, AGP pins 3 and 11 were unassigned. In AGP 8x, pins 3 and 11 were assigned, so because of that, G4s are not directly compatible with AGP 8x. G5 Macs draw all power from the finger connector and therefore are 8x compatible. To use an AGP 8x card in a G4, pins 3 and 11 must be somehow disabled; this can be done by placing tape over the conductive part of the pin, slicing the PCB traces, or on some cards, desoldering surface mount resistors.
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