Emac overclock

Discussion in 'PowerPC Macs' started by Deniz070, Nov 28, 2013.

  1. Deniz070 macrumors newbie

    Jun 5, 2013
    Hallo, Is it possible to upgrade the bus speed?
    I have (after research) a 7441 G4 800mhz Processor,
    And it has a 100mhz bus speed. is it possible to make this 133mhz?
    and on what speed would it run 867mhz?
    Is this true? http://www.xlr8yourmac.com/G4ZONE/sawtooth/SawtoothCPUdesign.html
    That you can upgrade the bus speed without soldering?
    Already thanks.
  2. Hrududu macrumors 68020


    Jul 25, 2008
    Central US
    This is probably the most extensive writeup on overclocking and upgrading an eMac that I've seen.
  3. Altemose macrumors G3


    Mar 26, 2013
    Elkton, Maryland
    Are you trying this for a specific purpose? When you mentioned 867 Mhz, I automatically assumed you want to get Leopard on there. If that's the case just spoof the speed using OpenFirmware or LeopardAssist. But if you want to overclock, just understand you may end up with a blown up CPU.

    :apple: Altemose :apple:
  4. Deniz070 thread starter macrumors newbie

    Jun 5, 2013
    I know you can install leopard on a 800mhz processor, But it is sometimes a bit slow, esspecialy(did i spell it good?) while typing on safari, im faster than the pc and that's a bit annoying, i dont have this problem with my g3 400mhz imac with the same software.
    Edit: actually when i'm done with typing on the screen it is still typing. thats the problem, is it maybe a video problem?
  5. Zotaccian macrumors 6502a


    Apr 25, 2012
    If you are already running Leopard when I guess it is just the fact that Leopard is heavier OS, it also relies more on graphics card than previous versions (or so I have read) and based on my experience with iMac G5 with FX5200 that might be true since with Tiger everything was smooth while in Leopard there was slight lag even with the dock compared to Tiger.

    I don't think overclocking to 867mhz (by altering fsb to 133mhz and adjusting multiplier accordingly) will make any difference, maybe some test software will show higher scores but that's it.

    Surfing the web is not that pleasant experience even with 1.5Ghz G4 if you compare to modern machines.

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