Connecting G4 tower to Mac Studio display monitor

Hi-

To use the ADC to DVI adapter, one must have an ADC port equipped graphics card, and then use the adapter to connect a DVI monitor.

Of course, if you have an ADC port equipped card, then you don't need an adapter to connect an ADC monitor.

If you are trying to connect a DVI port to an ADC monitor, then you need this:
http://store.apple.com/us/product/M8661LL/B

What graphics card, and what G4 are you using?

If you look closely at your ADC display, I believe you will see that it does not have a power cord. It is powered across the oval-shaped ADC connector by a 28 Volt power supply in the computer.

While the oval ADC connector supplies this power (provided your computer and graphics card can source it), the more squared-off DVI connector does not supply this power. That is why the Apple DVI-to-ADC converter contains its own AC power cord and power supply, and why it costs US$100.

japamac has urged you, as do I, to post the identity of your computer and graphics card. Readers may be able to suggest inexpensive alternatives that may meet your needs without the adapter.

No G4 Tower shipped with a graphics output port from the motherboard. They ALL relied on an Apple-provided Accelerated Graphics Port AGP-slot card (typically the top slot card) or a PCI slot card (some other slot). A great many G4 models shipped with a great many graphics cards, and some were even replaced by eager owners with Aftermarket cards.

The history of the options on these cards spans at least seven different G4 Tower models mentioned in this article, with quite a lot of different capabilities, different connectors, and compatibility with different displays:

HT1825- Power Mac G4: Display Compatibility

Message was edited by: Grant Bennet-Alder

IF your computer has the internal 28 Volt power supply, you may be able to add an inexpensive graphics card that has the required oval ADC connector for a nominal cost.

The CPU speed of your G4 goes a long way toward identifying which model it is.