Dual ADC displays and a vid card w/ no ADC ?

The amount of card memory has little to do with the rendering speed. That has to do with the amount of pipelines on the card/AGP slot, and the GPU speed, which for the 9600 is around 450Mhz IIRC, so it is relatively fast (better than the older 9000 Pro or lower cards, which maxed out around 350Mhz or 8500s with 250Mhz core clocks).

The Apple OEM ATI Radeon 9000 Pro has dual ADC ports.

I don't think there were ever any cards with two ADC ports. The monitors get power through the ADC, and the mother board would not provide enough power for more than one monitor.

The DVI-VGA adapter you have is for connecting a VGA display to a DVI port on a video card. To connect a digital display to a VGA port you need an expensive converter box.

There are some video cards for G4s that have one ADC and one DVI port, but be careful in your selection and be sure you can get a refund if it doesn't work in your computer.

Beware of the ATI Radeon 9600 Pro PC & Mac Edition 256MB. Because of its power consumption, it will not work reliably in some older G4s.

I have seen a NVIDIA GeForce 4 Titanium on eBay. It has one DVI and one ADC port. It was sold by Apple for G4s, but its performance is a lot less than your 9800.

There are modified 9600's with one ADC and one DVI port here:
<http://eshop.macsales.com/shop/video/hardware/>
The ADC port on these cards does not provide power, but may work if you use an ADC to DVI adapter, then one of your DVI to ADC adapters.

I have seen PC cards that have been flashed to work with a Mac. Read the descriptions carefully. Often there are limitations on the digital ports or supported resolutions.

Hi

As far as I'm aware, the Radeon 9000 that came as the stock graphics card in certain PowerMacs had an ADC connector and a DVI connector. It also came with a DVI to VGA adapter. If this is the case you should be able to attach one monitor directly to the ADC connector and the other to the DVI connector using the $99 DVI to ADC adapter. You'd be losing the benefit of the Radeon 9800 though.

Unfortunately there aren't any graphics cards with dual ADC connectors, as the card (and AGP slot) would have to provide enough juice to power two monitors. The options seem to be:

1. One AGP card with an ADC connector and DVI connector, which would require one DVI to ADC adapter, such as the Radeon 9000.

2. One AGP card with two DVI connectors, which would require two DVI to ADC adapters, such as the Radeon 9600 retail version. Mines worked perfectly, although there do seem to be problems with it in certain Quicksilvers and Digital Audio G4s.

3. One AGP card with a DVI connector, which would require a DVI to ADC adapter, such as your existing Radeon 9800 and one PCI card with a DVI connector, which would also require a DVI to ADC adapter, such as the Radeon 9200. An AGP card with an ADC connector would also work but seems pointless given you've already got the 9800 and adapter.

Unfortunately I'm not sure there is a really cheap solution. As already mentioned, there are VGA to DVI converter boxes on the market, but they're incredibly expensive and you'd be converting from digital to analogue and back to digital, with some loss of quality.