Oct 05, 2016 · There was a program for that model iMac: iMac (27-inch): AMD Radeon 6970M Video Card Replacement Program - Apple Support. However, there is a 4 year from date of purchase limit on the replacement. Unless your iMac was purchased in October, 2012 it's beyond the replacement date.

If your iMac is having trouble reading a CD or DVD, wipe the disc with a soft cloth to remove dust, oil, and fingerprints. Should that fail, invest in a disc-cleaning contrivance of some sort. To check and repair problems using First Aid, follow these steps: John Poen, here is the trouble shooting guide from Apple. It should help to narrow it down. Diagnostic LEDs. The iMac (20-inch 2007) has four built-in diagnostic LEDs on the main logic board that can help you to troubleshoot the computer. The four LEDs are located to the right of the memory slot, under the hard drive data cable. Nov 07, 2014 · Jesus Vigo covers 10 common troubleshooting solutions for Apple OS X and explains how and when to perform them. By far, the most likely source of trouble is Apple’s Safari (and more specifically, a webpage that uses Flash). and the iMac. Get a bigger hard drive: If you continually bump up against your

1. Startup issues. If your Mac fails to boot properly and you find yourself staring at a blank screen or gray startup screen instead of your desktop, then it's time to try booting in Safe Mode.

An unstable Internet connection can prevent you from downloading from other websites. Try downloading a file from another website, such as www.microsoft.com, www.apple.com, or www.mozilla.com.If the problem persists, contact your network administrator, help desk resource, or Internet service provider (ISP). iMac Repair - iFixit The iMac is Apple's line of all-in-one desktop computers. iMac troubleshooting, repair, and service manuals. Why I always recommend Macs over PCs — even though they're

If your iMac is having trouble reading a CD or DVD, wipe the disc with a soft cloth to remove dust, oil, and fingerprints. Should that fail, invest in a disc-cleaning contrivance of some sort. To check and repair problems using First Aid, follow these steps:

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