PCI Processor Upgrades

Discussion in 'Macintosh Computers' started by DeusOmnis, May 21, 2003.

  1. DeusOmnis macrumors 6502

    Jul 22, 2002
    Ann Arbor, MI
    I got a MDD tower the morning it came out (10:30 AM est) and although it's pretty good for a mac, the clock speed is just killing me in certain games, like MoH:AA, and other processor intensive situations.

    So, because of this, i want to wait for the IBM PPC 980s (Not 970s) to come out, and then buy a processor upgrade.

    These come on a PCI card, dont they? Does anyone know how that preforms compared to the normal motherboard mounted position? Does this bottleneck the ram and other parts very much?
  2. robbieduncan Moderator emeritus


    Jul 24, 2002
    Whilst it might be possible to mount a CPU on a PCI card you would need another processor in the main CPU slot to boot from. The one in the PCI slot could only be used to accelerate certain operations. Putting a PPC 970 there would not really make much sense as the PCI bus has even less bandwidth than the current 166Mhz memory bus in a power mac. People should really get it into their heads that the chance of PPC 970 upgrades for current Macs are unlikely and even if released will not offer anything like full PPC 970 performance.

    The PPC 970 is targetted towards a 400Mhz DDR bus, not the slow 166Mhz bus on your PM.

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