Is the other half of my new hdd useable?

Discussion in 'Mac Basics and Help' started by dogtag1968, Apr 15, 2009.

  1. dogtag1968 macrumors newbie


    Apr 16, 2006
    Inland NorthWest
    I've installed a 250gb WD hdd in my G4 AGP/ Graphics as a second drive. I didn't know the hdd limitations would affect a slave . Which is not a problem, what I need to know is if the half of the drive that dosen't mount will just be a waste of space. Or can it be formated and if so, how?

    500mhz, 27gb WD master hdd, 1gb pc133 ram, 250gb WD slave hdd.
  2. Makosuke macrumors 603

    Aug 15, 2001
    The Cool Part of CA, USA
    I assume the issue you're talking about is that those G4s don't support anything above 128GB on the built-in ATA bus. Master or slave isn't a factor, nor is which of the two buses it's on; it's a limitation of the drive controller on the motherboard. This feature didn't show up in the controllers officially until MDD G4s, though all QS I know of have it, and I've read reports of even a few older machines that do.

    There is a 3rd party driver from Intech, SpeedTools ATA Hi-Cap Driver, that will allow you to see and use the full capacity of a large drive on a G4:

    ...though it will cost you $25. The other alternative is a PCI ATA card, though it would be drastically more efficient in the long run to get a PCI SATA card instead, since SATA drives are much cheaper now.

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