iMac Graphic FW Update is a firmware update designed to help you fix a graphics issue that may cause your iMac to hang under certain conditions. Namely, it prevents your iMac to hang during startup or waking from sleep. You should not shut off the power on your iMac during this update. The loss of power could result in your iMac failing to start up.
This app updates the firmware on the Radeon HD 2600 PRO card to address issues.
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