Q: Graphics card faulty

Hi John,

See japamacs page here on the best AGP cards for G4s & G5s...

http://www.jcsenterprises.com/Japamacs_Page/Blog/4B4B7BA2-7ABB-47F1-87AC-B03D379 42BEE.html

Rated slowest on top, fastest on bottom, hopefully japamac will drop in shortly.

Your best buy will be a flashed PC card (converted to Mac ROM), UNLESS you need an ADC port.

A flashed Radeon 9800 XT can be found for around $120-$140, maybe even less.

If you need an ADC port, used OEM cards are all that is available.

For any card, the best place to find one is eBay.

What kind of connector is on the Monitor?

http://support.apple.com/kb/HT1825

How do I know if I need an ADC port?

Only if you use or plan on using the old, Apple acryllic LED monitors that had ADC connectors.

If your monitor is DVI, then there is NO need to limit oneself to an ADC equipped card.

The ADC then just requires an additional adapter to run a DVI monitor.

ADC Apple Cinema Display

   DVI Apple Cinema Display

If you only have one cable between the display and the CPU, and only one connection at the CPU, that's the ADC. It carries power, DVI video and USB to the display.

http://docs.info.apple.com/article.html?path=Mac/10.4/en/cdb_videoprts.html

If the cable splits before it gets to the CPU, then you have a DVI-compatible display.

All but one of the "Acrylic" displays are ADC. The very first "Cinema" display - 22" - was DVI (with a separate power supply), but looks a lot like the ADC Cinema Displays (20" & 23").