![screen - iMac doesn't start, all i see is colored lines and then checkered lines on a white background - Ask Different screen - iMac doesn't start, all i see is colored lines and then checkered lines on a white background - Ask Different](https://i.stack.imgur.com/hkV9a.jpg)
screen - iMac doesn't start, all i see is colored lines and then checkered lines on a white background - Ask Different
![Zapplerepair | iMac Turns On and Off After Pressing Power Button, Fix iMac Error Problem, iMac Power Button has a trouble Zapplerepair | iMac Turns On and Off After Pressing Power Button, Fix iMac Error Problem, iMac Power Button has a trouble](https://singapore.zapplerepair.com/admin/images/190520211009292019-5K-iMac-Booting.jpg)
Zapplerepair | iMac Turns On and Off After Pressing Power Button, Fix iMac Error Problem, iMac Power Button has a trouble
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iMac won't boot up, tried everything. Don't have the recovery cd. Anyway to factory reset? : r/MacOS
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