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  1. #1


    Member Since
    Jan 15, 2010
    Posts
    4
    Smile New to the Forum and in need of assistance- sometimes my G5 does not boot up
    Hello folks, I`m new to this forum and a semi-newb to the mac world... and I`m hoping to get some technical advise.

    A few months back my dysfunctional PC gave up the ghost and I decided to try a mac since I`ve heard so many good things about them.

    To make a long story short, I`ve got a smoking deal on a used G5 Dual 2ghz with 6 gigs of ram. I love the machine and the OS and it worked great for a few months but it started acting weird yesterday...

    When I turned it on it made the "happy sound" but the monitor stayed dark...It came on afetr I`ve pulled most of my USB devices.

    This morning: the same thing... and it did not came on until I removed the generic USB hub/card (PCI) that I`ve bought from Fry`s a month ago to plug in my stuff.

    Here`s the specs of my machine:
    Dual 2ghz power pc, 6 gigs of ram, Leopard 1.5.8, NVIDIA GeForce 6800 Ultra DDL, a no name generic airport compatible card. Samsung syncmaster 913v monitor ( I had to buy an adapter to connect it to the geforce video card)

    There`s one thing I should mention: Once the fan on the geforce video card
    started to accelerate until it sounded like a jet engine and the system froze up so I had to pull the plug.
    It rebooted OK after that though.

    Did someone else here experience similar problems, can it be that the aftermarket hardware (video card, network card or usb card) are conflicting with the original harware?

    Any help is appreciated.

  2. #2

    Collin Bl's Avatar
    Member Since
    Apr 07, 2009
    Location
    Napier NZ
    Posts
    3,297
    Specs:
    27 iMac i5, MBP 13 & iMac 20, 2TB dual TC, AppleTV, iPh4S
    Welcome to the forum. First dont pull the plug if u get a lock up hold the power button in 4-5 secs and it will shut down, pulling the plug could happen in the middle of the head writting to the HD and then u have more drama to sort. Secondly remove all extra peripherals and have a read thru here Come back with a status if you still have issues, some one can probably help.
    If you still have problems you could download this and install it just as a step to ensure OS is sound.

  3. #3

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Location
    Nambucca Heads Australia
    Posts
    21,986
    Specs:
    Imac 27" Retina 5K, 512GB Flash Storage, 3.3Ghz, 16GB memory, OS X.11.5.
    And if you have a lot of USB attachments, consider getting a mains powered hub as it may be the hub you are using is drawing a lot of power from the G5.

  4. #4

    toMACsh's Avatar
    Member Since
    Jul 30, 2009
    Location
    Wisconsin
    Posts
    6,145
    Specs:
    Mac Mini (Late 2014) 2.6GHz Intel Core i5 Memory: 8GB 1600MHz DDR3
    And try to craft a topic line when you post a question that gives the gist of the problem you're having, or at least what it's concerned with. Generic titles don't get much attention.

  5. #5


    Member Since
    Jan 15, 2010
    Posts
    4
    Thank you gents, with the USB hub removed and some of the steps from Colin`s troubleshooting list done (emptying caches, resetting PRAM) the G5 booted up quite nicely this morning...if it does fine tomorrow I`ll re install the USB card and see what happens.

  6. #6

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Location
    Nambucca Heads Australia
    Posts
    21,986
    Specs:
    Imac 27" Retina 5K, 512GB Flash Storage, 3.3Ghz, 16GB memory, OS X.11.5.
    Be aware USB and USB2 PCI cards are pretty unreliable and cause all sorts of sleep and other problems.

  7. #7


    Member Since
    Jan 15, 2010
    Posts
    4
    Quote Originally Posted by harryb2448 View Post
    Be aware USB and USB2 PCI cards are pretty unreliable and cause all sorts of sleep and other problems.
    So one of these external powered USB hubs are the way to go?

  8. #8

    Mac Pro's Avatar
    Member Since
    Oct 06, 2009
    Posts
    238
    Specs:
    27" iMac Quad Core i7 2.8 ghz 1TB HDD
    Yes, by using an external powered hub, you draw a lot less power from the computer.
    Use the reputation system

  9. #9


    Member Since
    Jan 15, 2010
    Posts
    4
    Quote Originally Posted by Mac Pro View Post
    Yes, by using an external powered hub, you draw a lot less power from the computer.
    Allright, gotta get me one. Thanks.

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