Lets try this reboot your system and hold the '''Shift''' key to get into Safe Mode. See if the clicking stops then. If its still happening lets try just starting up in Target Disk Mode holding the '''T''' key. The idea here is to pull away different parts of the OS to see what element is the source. In the case of Target Display Mode we are only running off of the systems BIOS kernel (EFI) no OS software is being loaded.
Here’s the IFIXIT guide to replace the power supply: [guide|28792] and here’s the needed part: [product|IF173-046].
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you do need to be very careful when removing the display. Make sure you use the pizza cuter tool and picks. And don’t forget to order the adhesive strips (I would get tow sets just in case!)
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you do need to be very careful when removing the display. Make sure you use the pizza cuter tool and picks. And don’t forget to order the adhesive strips (I would get two sets just in case!)
Lets try this reboot your system and hold the '''Shift''' key to get into Safe Mode. See if the clicking stops then. If its still happening lets try just starting up in Target Disk Mode holding the '''T''' key. The idea here is to pull away different parts of the OS to see what element is the source. In the case of Target Display Mode we are only running off of the systems BIOS kernel (EFI) no OS software is being loaded.
Here’s the IFIXIT guide to replace the power supply: [guide|28792] and here’s the needed part: [product|IF173-046].
+
+
you do need to be very careful when removing the display. Make sure you use the pizza cuter tool and picks. And don’t forget to order the adhesive strips (I would get tow sets just in case!)
Lets try this reboot your system and hold the ‘‘‘Shift’’ key to get into Safe Mode. See if the clicking stops then. If its still happening lets try just starting up in Target Disk Mode holding the ‘‘‘T’’’ key. The idea here is to pull away different parts of the OS to see what element is the source. In the case of Target Display Mode we are only running off of the systems BIOS kernel (EFI) no OS software is being loaded.
+
Lets try this reboot your system and hold the '''Shift''' key to get into Safe Mode. See if the clicking stops then. If its still happening lets try just starting up in Target Disk Mode holding the '''T''' key. The idea here is to pull away different parts of the OS to see what element is the source. In the case of Target Display Mode we are only running off of the systems BIOS kernel (EFI) no OS software is being loaded.
Lets try this reboot your system and hold the ‘‘‘Shift’’ key to get into Safe Mode. See if the clicking stops then. If its still happening lets try just starting up in Target Disk Mode holding the ‘‘‘T’’’ key. The idea here is to pull away different parts of the OS to see what element is the source. In the case of Target Display Mode we are only running off of the systems BIOS kernel (EFI) no OS software is being loaded.
Let us know what you discover!
Reference: [https://support.apple.com/en-us/HT201255|Mac startup key combinations]