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Thread: using G4 500 CPU in B&W G3

  1. #1
    using G4 500 CPU in B&W G3
    Hello there,

    This is my first post and got to say this is a great forum (been reading around) I am newbie switcher (mac for a month now), but an advanced PC user.
    I was about to post this in the Switcher section but the question is more advanced:

    Is it possible to use an original G4 500 or 450 (from a Cube or PPCG4) in a
    rev2 B&W G3 400 ??

    I have also seen firware upgrades for the B&W G3s, are they needed ??

    Thanks a lot

  2. #2

    Avalon's Avatar
    Member Since
    Jun 25, 2004
    Luxemburg, Europe
    No, this CPU swap won't work.
    The original G4 450MHz and 500 MHz where built in the G4 Sawtooth (aka AGP graphics). In this one, the CPU is mounted on a daughterboard. The B&W G3s CPU is on a ZIF socket.

    The G4 "Yikes!" (aka PCI graphics) had a G4 (350MHz and 400MHz) mounted as ZIF, and I think it's compatible with the B&W G3 (not sure though).

    You can get even faster G3 and G4 upgrades from and

  3. #3
    Well I guess CPU upgrade is worth it.
    I will swap the 12GB 5400 rpm with a 20GB 7200rpm ... that should make a difference.
    Problem is it is ATA33 ...

    Would upgrading the ATI Rage128 to a Geforce2 help (with PCI hack thingy) ??

    Considering I have 512MB ram it should be fine ....

    Thanks for the reply

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