* '''Command + Option + P + R''' (during boot) - This will wipe the PRAM contents. If you're experiencing strange issues with your Macintosh or problems like video not being displayed, clearing the PRAM may help. | * '''Command + Option + P + R''' (during boot) - This will wipe the PRAM contents. If you're experiencing strange issues with your Macintosh or problems like video not being displayed, clearing the PRAM may help. |