Apple iMac Graphic FW Update
Download Apple iMac Graphic FW Update 3.0 for Mac from our website for free.
From the developer:
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.
You may want to check out more software for Mac, such as iMac Graphics Firmware Update or iMac Graphics Update, which might be related to Apple iMac Graphic FW Update.