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| Powermac G5 GPU in a G4? | |
| Posted by: Nepnep on 2022-06-28 12:42:46 Hello! I’m new to the forum and this is my first post! Anyways, I was looking on eBay for a Mac compatible GPU for my quicksilver G4 since it only has a GeForce 2 and I don’t want to mess around with BIOS flashing, and I found a Graphics card from a Powermac G5, an ATi Radeon 9600XT (or Apple 603-5720). It’s an AGP card with an ADC video output, so it has the odd non-standard AGP trace on it for the monitor’s power. Would this work in a G4 or is the G5 different enough to where it wouldn’t work?  | |
| Posted by: AndiS on 2022-06-28 13:02:10 It is a AGP 8x card and will not work without modification in your G4. You can tape the pins 3 and 11 to make it work (as an AGP 4x card) Have a look here: http://themacelite.wikidot.com/pins-3-and-11 And of course, it is not supported under MacOS 9 | |
Posted by: Nepnep on 2022-06-28 13:11:42It is a AGP 8x card and will not work without modification in your G4. You can tape the pins 3 and 11 to make it work (as an AGP 4x card)After reading through that link, I kinda understand. So after disabling pins 3 and 11, it should work although the ADC output won’t? | |
| Posted by: AndiS on 2022-06-28 14:13:17 Yes, that is the case. Still this is the option for the fastest graphics cards in G4 Powermacs. Not so much the Radeon 9600 (It is one of the slower G5 graphics options, I also have one) - but in general. | |
| Posted by: bloedmage on 2022-07-18 01:04:54 This GPU wont work in a G4. The G5’s have the ADC power connector slightly more to the left And therefore wont fit. | |
| Posted by: Byrd on 2022-07-18 02:05:22 More info here - with some chopping and soldering, yes - but it does look dodgy. | |
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