Apple has released iMac Graphic FW Update 3.0 which fixes a graphics issue that may cause an iMac to hang.
About iMac Graphic FW Update 3.0
This firmware update fixes a graphics issue that may cause an iMac to hang under certain conditions.
Do not shut off the power on your iMac during this update. Loss of power could result in your iMac failing to start up.
You can install the update by selecting Software Update from the Apple menu at the top left of your screen.
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About iMac Graphic FW Update 3.0
This firmware update fixes a graphics issue that may cause an iMac to hang under certain conditions.
Do not shut off the power on your iMac during this update. Loss of power could result in your iMac failing to start up.
You can install the update by selecting Software Update from the Apple menu at the top left of your screen.
Read More