Mac Pro issues

Discussion in 'Mac Pro' started by thecraftsman, May 18, 2013.

  1. thecraftsman macrumors newbie

    May 18, 2013
    I was using my Mac Pro all day yesterday from surfing the net using airport to exporting HD video I editing from Final Cut Pro X and was on all day long. Then I shut it down real quick at night.

    The next morning when I tried to turn it on -- nothing. I hear a click sound when I hit the power button but no fans, no drive, no sound, so I got real scared. It was a refurbished 2010 model, it's only been a year, and I haven't put it to its full use even, did some minor editing work is all. I was panicking worrying, googling for solution.

    I opened it up and saw that when I hit the power button a red light flashes for a second but nothing else works. I took out the drives (2x 1TB WD HDD and 1 Samsung SSD), took out all the OWC RAM memory (16GB total) and replaced it with 1GB apple RAM memory that came with it. Dusted off all the insides and stuff and then plugged back the power cord and tried it. Same thing, I hear a click sound when I hit the power button and see a red flash for a second but it still doesn't turn on. I even changed the plug to another cord and still the same thing.

    I'm worried to death and hope it's not dead or something. I suspect it's PSU that's failed but I'm no expert and I know next to nothing when it comes to Mac Pro related isssues cuz I've had 3 Apple computers, 2 laptops and this Desktop and an iPhone/iPod and I never had any issues with them, pushed them real far in terms of load but this is the first time I'm experiencing such an issue. If it's a PSU related issue, can someone suggest a decent, affordable and worthy PSU for the Mac Pro?

    I'm really worried and need help here as I've got 2-3 videos that I have to finish editing for a project and I'm stuck now.

    Help will be greatly appreciated. Thanks
  2. justperry macrumors G3


    Aug 10, 2007
    In the core of a black hole.
    Unplug it for an hour or so, then try again.

    Seems to be the PSU.
  3. DanielCoffey macrumors 65816


    Nov 15, 2010
    Edinburgh, UK
    Are you still covered under the refurb warranty?
  4. Macsonic macrumors 65816


    Sep 6, 2009
    In my former company we had a Mac Pro with a busted Power Supply When you hit the power button there was no "click" sound and no red light. It was totally dead. Another symptom is when we plug the power cord's female head to the Mac Pro's male outlet, there was not even a sparking sound or "cracking" sound. This is of course with the power cord plugged to the outlet of the UPS.

    You can try to test with your power cord plugged to the electric outlet, than try plugging the female head of the power cord to your Mac Pro's outlet and see if you still hear a "cracking" sound. The problem may also be on logic board or just a loose start up button.
  5. thecraftsman thread starter macrumors newbie

    May 18, 2013
    No it's not covered and I've tried the cord change method and its still the same thing. How do I check if its logic board? And can anyone suggest a new PSU for the MAC pro.

  6. CaptainChunk macrumors 68020


    Apr 16, 2008
    Phoenix, AZ
    Are you still within your 1-year warranty? If so, bring it to an Apple Store or AASP and have it checked out. If you bought Apple Care with the machine, your warranty would be extended to 3 years.
  7. nanofrog macrumors G4

    May 6, 2008
    You can get a "click" sound out of a bad PSU (click = relay, and there are typically 2).

    Unfortunately, to test to see if that's genuinely the problem (or the logic board), you'd need to take it into Apple or an Authorized Repair center and let them diagnose it.

    Spare parts of this type will have to be from Apple, as it's all been modified from standard parts. Thus a standard off-the-shelf PSU won't fit (there are ways to modify existing parts, but it's extensive and you'd need to really know what you're doing).
  8. thecraftsman thread starter macrumors newbie

    May 18, 2013

    I've managed to take out the PSU from the Mac. If I take it to a local computer shop, will they be able to tell me if the PSU is working or dead? Maybe if it's dead then I can confirm it is the PSU and go ahead and buy a new one.

  9. MacStu09 macrumors regular

    Aug 27, 2009
  10. crjackson2134 macrumors 68040


    Mar 6, 2013
    Charlotte, NC
    Even though there's a good chance you need a PSU, there is an equally good chance that another component is the culprit. It might be worth the money to have it checked at at proper facility. You could spend a lot of money on parts replacing until you get the right one.

    A CPU fan/controller can do the same thing, as can a video card. A PSU could be right on target... Or not!
  11. nanofrog macrumors G4

    May 6, 2008
    Not likely at all, as they tend to just hook them up to a known good board (wire - connector locations are different IIRC, and computer shops do not use electronic loads and test the voltages, even if they had the pinouts).
  12. nockamura macrumors newbie

    Mar 13, 2004
    I have the exact same problem. No wake from sleep and a clicking sound when trying to boot cold with CPU-A and CPU-B lights red on the motherboard. It will boot consistently if I hit the SMC reset button before hitting the power button. Annoying as hell, but just has to last me until they release a new MP (if ever). Have you tried doing the SMC reset?
  13. dollystereo macrumors 6502a


    Oct 6, 2004
    Reset the SMC:

    Shut down the computer.
    Unplug the computer's power cord.
    Wait fifteen seconds.
    Attach the computer's power cord.
    Wait five seconds, then press the power button to turn on the computer.


    Maybe take a look here if the problem persists.'t+boot

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