G4 MMD PCI Limitations

Discussion in 'Macintosh Computers' started by TyleRomeo, Nov 19, 2004.

  1. macrumors 6502a

    Joined:
    Mar 22, 2002
    Location:
    New York
    #1
    are all four PCI slots on the 2002 MDD all 32 bit and 33MHZ. and what exactly does that mean. Is it possible to set up a RAID 5 with a PCI card. And what is the max read and write times I can achive, having 3 SATA 400GB Seagate 7200.8 drives hooked up.

    Tyler
     
  2. macrumors G3

    Counterfit

    Joined:
    Aug 20, 2003
    Location:
    sitting on your shoulder
    #2
    According to Mactracker, there are 4 64-bit 33MHz PCI slots, and one 4x AGP slot.
     
  3. thread starter macrumors 6502a

    Joined:
    Mar 22, 2002
    Location:
    New York
    #3
    so how does 64 bit help out or does it do nothing at all?

    Tyler
     
  4. macrumors 603

    Mechcozmo

    Joined:
    Jul 17, 2004
    #4
    More data sent per clock cycle. Twice as much in this case. And you would see a huge read/write speed with a 3 drive SATA RAID 5 array. All the benefits of RAID 0 but with the safety of RAID 1. It would be way more than your internal drive.

    So use your internal drive for the OS and non-video stuff (you are doing video work right?) and the RAID array for the heavy duty video work.
     
  5. thread starter macrumors 6502a

    Joined:
    Mar 22, 2002
    Location:
    New York
    #5
    yeah it's for video work. But I read elsewhere that PCI maxes out at 133MB/s. So I guess that makes it impossible to read and write at 160-180MB/s for uncompressed HD, even if i had 3 Raptors attached. Now a side note, does the PCI bus slow down if say you have your SATA PCI card along with a PCI soundcard, a Firewire 800/USB 2.0 card and a video caprture card?

    Tyler
     
  6. macrumors member

    Joined:
    Nov 16, 2004
    Location:
    Vancouver, British Columbia, Canada
    #6
    so does this mean a 64bit 33mhz slot is just as fast as a 32bit 66mhz slot?
     

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