iMac G3 Video Acceleration

Discussion in 'PowerPC Macs' started by dpaanlka, Nov 23, 2006.

  1. dpaanlka macrumors 601


    Nov 16, 2004
    So I bought this 600mhz iMac G3 for a friend. It has a CD-RW, but not a DVD drive, so I installed Tiger by putting the iMac into Firewire Target Disk Mode and installing Tiger via my PowerBook G4.

    It works and boots, but somehow I get the feeling that there is something wrong with video acceleration. I mean, even though its an iMac G3, it has a 16mb Rage 128 Ultra AGP... it should be able to play 320 x 240 Sorenson movies full screen just fine. It also should do iTunes visualizers with "faster but rougher display" enabled just fine (remember those iTunes visualizer commercials from when the iMac G3 was still current?).

    For some reason, none of this stuff seems accelerated as it should be (in my opinion). Is there a way to check if the correct video card is recognized and drivers installed for Tiger? After all, I did install this OS from a G4 with a totally different video card from a different manufacturer. Could this cause video problems?
  2. Xenesis macrumors regular


    Sep 3, 2006
    *points to sig*

    I can assure you that my iMac cannot run iTunes visualiser at full speed in OSX. It gets <10 fps. OSX is extremely taxing on the CPU/GPU of these machines and if you boot into OS9 (And use the RAVE renderer especially) it's much, much faster. That being said, my iMac only has a Rage 128 Pro 8Mb, but I can't imagine the 16mb Rage 128 Ultra AGP being much faster.

    iTunes 7 is also a lot slower than iTunes 6 or below. Consider using an older itunes if you want the visualiser nice. As for Video, I'm pretty sure that it's just the processor choking. OSX will use up most of the Processing power on a computer that old.
  3. California macrumors 68040


    Aug 21, 2004
    That's weird. I played a dvd on an iMac G3 DV 400 the other day just fine. Do you have it stuffed with memory? What kind of hard drive? Max it out with memory, put in a 8mb cache 7200 hard drive and let us know. Also, I was using Panther on this. I wonder if we're not better off with Panthr on the old iMacs.

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