Mac Pro Woodcrest 3.0GHz, Original [HDD Cache, Boot ROM, Bus, Host]

Discussion in 'Mac Pro' started by gestaltian, Oct 26, 2010.

  1. gestaltian macrumors newbie

    Oct 25, 2010
    For several years now, daily, I've ran through a number of different HDD's under relatively stable (although hard-working) conditions (Seagate, WD, and now Hitachi). None of them ever crashed until recently (WDD Caviar Black 640MB). But there have regularly been periods of time (before that) in the past when I would hear what sounded like sharp-twang on Shutdown - like a noise from a toy ray-gun or something. It's happened a few other times in the past, although an HDD has never failed shortly thereafter.

    So far the only connection I've assumed (without good cause) is that I notice it seems to coincide with an Apple Software Update, I believe from 10.5.4 & up. (10.4.11 to 10.5.4 seems to be OK in spite of that unknown user permissions issue).

    Mac Pro Wiki Below:

    Should any new/upgraded HDD cache (MB) be no greater than what was programmed in my original System/OS10.4.11 (or BUS?) configuration from Apple (which at that time was an 8MB by default, or 16MB upgrade)?

    A. Yes, most any newer 32MB cache should be 99% compatible (i.e., Hitachi E7K1000) with both your original 2007 System Build (10.4.11).

    B. No, I have experience programming for OS X, Unix, I/O, Kernel & stuff... And stick with any new HDD's original matching (MB) cache.

    C. Irrelevant.

    Thanks All!
  2. goMac macrumors 603

    Apr 15, 2004
    Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_1 like Mac OS X; en-us) AppleWebKit/532.9 (KHTML, like Gecko) Version/4.0.5 Mobile/8B117 Safari/6531.22.7)

    What? No. You have SATA. Any SATA drive will work. Your system version and the cache size are all meaningless in this context.

    If you push drives hard they die, even in desktops. Fact of life. Always keep backups.

    (and the sound your Mac Pro makes doesn't sound important, probably a normal disk spindown.)

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