Radeon 9800 xt AGP + Mac G4

June 2, 2010 at 05:38:25
Specs: Macintosh
Hii there, I just bought a Radeon 9800xt to use on my G4 system but the card doesn't appear to fit the board, my system is AGP as is the card. The reason I bought this card and not a Mac specific card is the price, I've heard these can be flashed to work on Mac's. I'm really more a software guy than a harware person and I don't know what to do, if someone could help me out that would be great, thanks!

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#1
June 2, 2010 at 10:30:17
If it doesn't fit the AGP inside the G4 I am afraid there is nothing you
can do as there is no a way to bridge that. Check again to identify the
AGP port inside your Mac. Also make sure you got an AGP PC
version. Try to identify the circuit connectors pattern to see if the
match.

I have never tried this but the conversion itself is involves a whole
tutorial with images and you could find information doing this internet
search: ati9800convert This is not for the same model you have but it
may work.


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#2
June 2, 2010 at 10:45:12
Thanks for this jecs, I've been chatting with someone about it and it's not the right version, I think it has something to do with the voltage, apparently my mac has a 1.5v slot and the card itself is a 3.3v - Guess I'll be putting this on eBay :( Thanks again

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#3
June 3, 2010 at 08:28:07
Voltage settings do not matter. All AGP cards pretty much fit in all AGP slots. This does not mean a 8x will always function in a 4x slot, or that a 3.3v will function in a 1.5v slot, but they are made to be almost universal hardware wise, even AGP pro.

Mac AGP is no different from PC AGP, they are functionally identical.

What G4 do you have? Are you sure you don't have a PCI G4? There also maybe a capacitor or other hardware blocking the card and preventing it from installing correctly.

If this is a PC video card, you will need a PC first anyhow to flash the card to a MAC version. That is unless you found somekind of os-x flash utility. All the cards I have flashed have been flashed on a PC first, half of those had to have the 32kb flash rom de-soldered and a 64kb rom soldered on the board.

I have all the Nvidia ROM's and ATI ROM's if you need any, and have all the links where to find them.

PowerMac 9600(1 ghz G4)
512mb RAM
50gb SCSI
ATi 9200 PCI


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Related Solutions

#4
June 3, 2010 at 08:47:22
Hey Outlander, thanks for that... Yeah I'm sure it's AGP, here's the info from Sys profiler:

Machine Name: Power Mac G4 (AGP graphics)
Machine Model: PowerMac3,1
CPU Type: PowerPC G4 (2.7)
Number Of CPUs: 1
CPU Speed: 400 MHz
L2 Cache (per CPU): 1 MB
Memory: 1.38 GB
Bus Speed: 100 MHz
Boot ROM Version: 4.2.8f1

I'm just going to sell the card as it's kind of useless to me now, here's a shot of the problem

http://i69.photobucket.com/albums/i...

It'll fit in backwards though lol


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#5
June 3, 2010 at 09:33:51
Ah that's right, some of the slots had that little notch blocking installation of the card. Gah, not much can be done.

PowerMac 9600(1 ghz G4)
512mb RAM
50gb SCSI
ATi 9200 PCI


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#6
June 3, 2010 at 09:43:06
Nope.. Well it's not a problem, only got this one because the Mac version is so expensive - What's the equivalent to this card that would work on my system? Cheers :)

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#7
June 3, 2010 at 11:49:30
You'll find that ATi does this alot with their AGP cards. Most Nvidia cards will have both notches taken out. Look around on eBay for ATi cards, but pay attention to the pictures first and make sure both notches are removed on the card. Also make sure there is a corresponding Mac ROM available for said card before you purchase.

PowerMac 9600(1 ghz G4)
512mb RAM
50gb SCSI
ATi 9200 PCI


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#8
June 3, 2010 at 12:26:07
Ok, just had a look on eBay and there's absolutely loads on there, bit of a mine field really and I'm still not 100% sure what I should be looking for, I'll keep searching.. Thanks for the help Outlander

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