Comments on: Power Macintosh Graphite G4 – ATI Radeon 9250 https://modelrail.otenko.com/apple/power-macintosh-graphite-g4-ati-radeon-9250 Trains, computers, vintage, retro, model railways... the lot... Tue, 08 Aug 2023 01:02:45 +0000 hourly 1 https://wordpress.org/?v=6.4.3 By: stevenh https://modelrail.otenko.com/apple/power-macintosh-graphite-g4-ati-radeon-9250/comment-page-1#comment-54598 Sun, 05 Feb 2023 00:11:31 +0000 https://modelrail.otenko.com/?p=7046#comment-54598 In reply to SatHawk.

Very good news! It’s great to be able to keep these machines alive!

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By: SatHawk https://modelrail.otenko.com/apple/power-macintosh-graphite-g4-ati-radeon-9250/comment-page-1#comment-54595 Sat, 04 Feb 2023 21:51:37 +0000 https://modelrail.otenko.com/?p=7046#comment-54595 Thank you very much for this well described instructions. I was able to not just flash but even resoldered SMD to make the Radeon 9250 working in my “new” PowerMac G4 AGP.

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By: Alfonso https://modelrail.otenko.com/apple/power-macintosh-graphite-g4-ati-radeon-9250/comment-page-1#comment-48713 Mon, 31 May 2021 22:43:47 +0000 https://modelrail.otenko.com/?p=7046#comment-48713 In reply to stevenh.

Hi steven Thx for your fast response¡¡, i sent you the mail. Thx Again :)

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By: stevenh https://modelrail.otenko.com/apple/power-macintosh-graphite-g4-ati-radeon-9250/comment-page-1#comment-48683 Fri, 28 May 2021 02:03:35 +0000 https://modelrail.otenko.com/?p=7046#comment-48683 In reply to Alfonso.

Hi Alfonso, send me the photos via email and I’ll try and help.
stevenhoefel at hotmail dot com

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By: Alfonso https://modelrail.otenko.com/apple/power-macintosh-graphite-g4-ati-radeon-9250/comment-page-1#comment-48682 Fri, 28 May 2021 01:35:46 +0000 https://modelrail.otenko.com/?p=7046#comment-48682 Hello, I have seen your tutorial and I found it super interesting, I am in the same case as you with your Ati9250, mine is a Club3D Radeon 9250 128MB AGP8x (which I have already flashed with a ppc rom to use with my G4 MDD) and tapped pin 3 and 11. Like you, the g4 shows me the same symptoms on the screen, and I am in the step of removing the resistors.

Could I send you a photo of the position of mine? I have a question and before desoldering I would be very grateful if you could help me and make the right decision.

Thank you very much

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By: Michael https://modelrail.otenko.com/apple/power-macintosh-graphite-g4-ati-radeon-9250/comment-page-1#comment-44924 Tue, 14 Apr 2020 03:43:24 +0000 https://modelrail.otenko.com/?p=7046#comment-44924 In reply to stevenh.

Update – just set up a similar card, which was made possible by this detailed guide.

I used a VisionTek 9250 PCI, rather than the AGP. Like your card, it is half height.

There are two RAM chips on each side, 4 total. I flashed with the reduced ROM by Tome. 64MB of video memory is recognized by OS 9 after installing patched drivers. I have not yet tested in OS X.

I suspect that cards with 8 memory chips (four on each side) will have the full amount recognized by the operating system, unless that amount exceeds 128MB.

The ROM chip used is a PM25LV512. I believe you can get a PM25LV010 as a replacement that should offer 128k of storage.

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By: stevenh https://modelrail.otenko.com/apple/power-macintosh-graphite-g4-ati-radeon-9250/comment-page-1#comment-44809 Sun, 05 Apr 2020 23:56:56 +0000 https://modelrail.otenko.com/?p=7046#comment-44809 In reply to Michael.

Hi Michael,
I didn’t actually check the listing of the card in System Profiler before passing the machine along. Unfortunately I don’t have it any more to find this out.
Steven.

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By: Michael https://modelrail.otenko.com/apple/power-macintosh-graphite-g4-ati-radeon-9250/comment-page-1#comment-44804 Sun, 05 Apr 2020 16:50:21 +0000 https://modelrail.otenko.com/?p=7046#comment-44804 Hi,

Is the full 128MB of memory recognized on the flashed card? Also, have you ever tried this card with the reduced ROM in OS 9?

Michael

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By: stevenh https://modelrail.otenko.com/apple/power-macintosh-graphite-g4-ati-radeon-9250/comment-page-1#comment-41683 Tue, 08 Jan 2019 22:37:00 +0000 https://modelrail.otenko.com/?p=7046#comment-41683 In reply to Pierre Cauchy.

Pierre,
Nice work. Very happy that you managed to get the card flashed.
I’ll grab a copy of 3.25 and store here for safe-keeping.
Steven.

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By: Pierre Cauchy https://modelrail.otenko.com/apple/power-macintosh-graphite-g4-ati-radeon-9250/comment-page-1#comment-41671 Sun, 06 Jan 2019 22:53:20 +0000 https://modelrail.otenko.com/?p=7046#comment-41671 In reply to stevenh.

Hi Steven,

Thanks for your help. As I had no luck flashing with anything below 3.99 (I had the “ROM NOT ERASED” message) I ended up unlocking with ATIflash 3.99 and flashing with 3.25, and it worked. No idea why flashing straight with 3.99 didn’t work.

Cheers,

Pierre

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