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Mac Pro won't start up

3472 Views 11 Replies Latest reply: Apr 2, 2011 9:54 PM by gmat5037 RSS
gmat5037 Calculating status...
Currently Being Moderated
Mar 12, 2011 10:47 PM
I live in Tokyo and after the recent earthquake, I find that my pre 2009 Mac Pro doesn't start up. When I press the start button, I can hear the fans turning and the light next to the on button was blinking. My video monitor briefly displays 2 DVI with "no input signal" under it. I tried starting it while pressing the d button. No joy. I also tried pressing the command and P and R key and then just pressing the option key and also just pressing the shift key. No joy. Now when I try to turn it on, the light next to the button doesn't blink anymore.
I checked the cables and all seem to be fine.

One thing that did was that while I was cleaning up, I used the vacuum hose to clean the dust from the front grill. I didn't touch anything else.

My three year warrenty expired last month.
Any idea what might be wrong?
Thank you,
Grant
Mac Pro, Mac OS X (10.5.2)
  • The hatter Level 9 Level 9 (58,535 points)
    Currently Being Moderated
    Mar 13, 2011 6:46 AM (in response to gmat5037)
    do you have uninterruptable power to your Mac Pro?

    A vacuum is not a good idea, even if off and powered down.
    3.2GHz 8GB DDR3 1600 GTX 460 3 x SSD, Windows 7, Mac Pro 8800GT Corsair SSD F90
  • Grant Bennet-Alder Level 8 Level 8 (48,105 points)
    Currently Being Moderated
    Mar 13, 2011 3:58 PM (in response to gmat5037)
    The Mac Pro sold in the US uses a distinctive power cord that has a large square of rubber-like material around it at the computer-end. It is easy to get it so that the power cord is not inserted fully. Remove the power cord from the computer and re-seat it firmly.

    IF your Mac was subject to shaking, you should remove and re-seat some of the internal components such as memory modules and the graphics card.

    What you need to achieve first is a Chime at Startup. The chime is generated in software when the first part of the power-on Self-Test has passed. If a source of software and enough working memory can be found, booting is likely.

    Next, try for something on the Display. There is a routine completely in ROM that will make the screen blue and show arrows to proceed and Icons for any potential Boot Devices. Hold down the Option key to activate it. Since no Boot devices are required, you can try removing all your Hard Drives and Optical Drives.

    One blink followed by off may indicate no RAM available. Three blinks followed by off may indicate part of memory has failed.

    Home vacuum cleaners can generate large static charges with their plastic tools and wands. You should not use them inside your Mac. Instead, move the Mac outside or to a work area and blow the dust into the air with compressed air. If you do this in a nice area of your home, you will be very unpopular.
    Beige G3, G4/867, G4/dual 1.25 MDD, MacPro'09 w cheap SSD, Mac OS 8.6 or Earlier, and 9.2, 10.5 and Server - LW IIg, LW 4/600, ATalk ImageWriter LQ
  • Grant Bennet-Alder Level 8 Level 8 (48,105 points)
    Currently Being Moderated
    Mar 14, 2011 5:48 PM (in response to gmat5037)
    Without a chime, it is very difficult to determine what might be wrong.

    Removing anything that might be dragging down the power, including your graphics card, any PCIe slot card, all the drives, and all but the smallest possible amount of memory is the next step. If you do not get a chime then, there is very little you can do yourself.

    The side door is not interlocked -- it can be removed while your Mac is running. There are additional lights inside, including lights next to each memory module. There are no hazardous voltages inside until you use tools to take things apart.

    If you are not comfortable doing this kind of work, then you should take your entire Mac Pro to the Apple Store or an Authorized Apple Service Provider. It is a good thing it has handles!

    If you make an appointment with the Genius Bar, they will have someone who can work with you for about 20 minutes to try to determine what the problem is. Beyond that 20 minutes, you may have to leave it to be looked at later.

    These units are well built and reliable. They are very repairable, not disposable. Most major components can be replaced for far less than the cost of a new Mac Pro, and used units keep their value pretty well.
    Beige G3, G4/867, G4/dual 1.25 MDD, MacPro'09 w cheap SSD, Mac OS 8.6 or Earlier, and 9.2, 10.5 and Server - LW IIg, LW 4/600, ATalk ImageWriter LQ
  • Grant Bennet-Alder Level 8 Level 8 (48,105 points)
    Currently Being Moderated
    Mar 23, 2011 5:00 AM (in response to gmat5037)
    Many readers would like to be able to learn from your experience.

    What was the problem, or what did they do to get it going?
    Were parts replaced? Did it cost you a lot of money?
    Was it extremely inconvenient? Would you do this method again, or would you have been happier getting a new Mac Pro?
    Beige G3, G4/867, G4/dual 1.25 MDD, MacPro'09 w cheap SSD, Mac OS 8.6 or Earlier, and 9.2, 10.5 and Server - LW IIg, LW 4/600, ATalk ImageWriter LQ
  • satcomer Calculating status...
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    Mar 31, 2011 4:46 PM (in response to gmat5037)
    The shaking could have done something to the memory. Try taking of the side and try to power it up and then pay attention to the memory risers to see if any display a error light. Also you can take memory out slowly and see if one of the memory sticks is the culprit.
    MacBook Pro 2.16, Mac Pro Dual 2.8, 14G RAM, 2010 Mac Mini, Mac OS X (10.6.7), iPhone 32 3GS and Time Capsule 2T

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