Mac Pro 3,1 not sleeping

Discussion in 'Mac Pro' started by weezerr, Jun 23, 2017.

  1. weezerr, Jun 23, 2017
    Last edited: Jun 23, 2017

    weezerr macrumors regular

    Nov 7, 2006
    I have a Mac Pro 3,1, GTX 570, 32 gb of RAM, running 10.11.6.

    No matter what I do the fans stay on. When it goes to sleep, the monitors go dark, but the fans stay on, and I dont get that nice pulsatile sleeping power light.

    I have done the terminal command: pmset -g assertions and there is nothing preventing the system from sleeping. I powered down and reset the SMC/PRAM without improvements.

    Any thoughts?
  2. weezerr, Jun 25, 2017
    Last edited: Jun 25, 2017

    weezerr thread starter macrumors regular

    Nov 7, 2006
    I also tried disconnecting all my USB peripherals/scansnap and it did not solve the problem.

    Please help!

    Is there some sort of diagnostic hardware utility I should run? Troubleshooting tips?


    Found the problem!

    I had a rogue printer queue.

    She sleeps like a baby now.

    3,1: Still going strong almost a decade old.
  3. OS6-OSX macrumors 6502a


    Jun 13, 2004
    Of course it's still going strong! The 3,1 is King of Mac Pros! :p
    King cMP.png
  4. weezerr thread starter macrumors regular

    Nov 7, 2006
    Its pretty remarkable the value the 3,1 has provided. Still feels snappy for most daily tasks.

    Wonder if it will be worth getting high sierra on this beast, as I skipped regular sierra.
  5. nigelbb macrumors 65816

    Dec 22, 2012
    I agree 100%. I bought my Mac Pro new in 2008 & it's still going strong with these few simple upgrades that I have done over the years.

    • A 4GB GTX680 I flashed myself for an Apple boot screen
    • 56GB 667MHz FB-diMMs (6x8GB plus 2x4GB) - weirdly installing 64GB interferes with PCIe SSD performance
    • 2 x 1TB Samsung Evo 850 in RAID-0 on Apricorn Velocity Duo PCIe card
    • HighPoint RocketU 4-Port USB 3.0 PCI-Express 2.0 x4 HBA Controller RocketU 1144C
    • 4 x 8TB Seagate HDD - one configured for Time Machine
    I haven't bothered to upgrade to Sierra & now I think that I'll just wait for High Sierra. The value for money of this system has been fantastic & I can see it still being useful for years to come. The only downside is that power consumption is doubtless higher than a more modern Mac but purchase of a similarly configured nMP (64GB RAM & 1TB internal fast storage & 32TB nearline storage) would cost well over £5000.
  6. weezerr thread starter macrumors regular

    Nov 7, 2006
    Similar upgrades. You can grab a bluetooth/wifi card for $40 on eBay which I will probably get.

    Also skipped Sierra but will probably throw high sierra on it if its easy.

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