iMac freezing may be caused by faulty Radeon chips

November 8, 2007

iMac freezing may be caused by faulty Radeon chips All those iMacs that seemingly freeze for no reason may have a much more serious problem than faulty drivers and updates from Apple may not fix the issue.

Indeed that’s what some have been reporting as discovered by Apple Insider.  Some iMacs were fixed with the updates and some weren’t, those that weren’t might have a faulty ATi AMD Radeon chip in them.

The iMacs in question crash randomly, freeze up or freeze up and then crash and on occasion exhibit graphical artifacts that can “be associated with overclocking the GPU.”  If that’s the case then it is a hardware issue and a call to AppleCare or a visit to your local Apple Store is in order.

One user reports that since the ATi/AMD HD2400/2600 was replaced, the iMac has operated flawlessly.

Some even experience the issue when using Windows with BootCamp and Windows will restart which is most certainly an indication of a hardware problem and not software.

Whether it be simply a faulty chip or a matter of overheating, it’s up to Apple to fix the issue, there isn’t much users can do themselves, unless you want to operate your iMac from inside a refrigerated compartment.

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4 Responses to “iMac freezing may be caused by faulty Radeon chips”

  1. Marc:

    Arghh.. this is tainting my first Mac experience. With the amount of times mine has locked up on me, I feel like I am running windows ME.

  2. Partners in Grime:

    Maybe the freezing iMacs have a problem with the Dynamic Power Management feature of the video card.

  3. hubsq » Blog Archive » iMac freezing may be caused by faulty Radeon chips:

    [...] the full story here Author Ezequiel Bean Comments [...]

  4. Ken:

    Marc:
    Don’t worry. You are not really experiencing any problems, but are a victim of expecting perfection from Apple:
    http://mac.blorge.com/2007/10/13/is-apples-customer-care-failing/

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