Introduction
The iMac G3 uses a tray-loading optical drive. It uses a PATA optical drive. This guide will show you how to change your computer's optical drive.
What you need
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            The iMac G3. This was a great computer for the time, and had plenty of features. 
 
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            Start by flipping the iMac upside-down. It may help to lay it on a towel, so you don't damage the screen, or scratch the face. 
 
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            Remove this Phillips screw. 
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            Using a flathead screwdriver, work your way around the bottom cover, until it comes off. 
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            Then, lift the bottom cover up and out, and set it aside. 
 
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            Now, remove the DB-15 Video connector from the logic board. 
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            It may be helpful to use a Phillips screwdriver to remove the thumbscrews. 
 
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            Now, remove these Phillips screws. 
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            Now, grab the logic board assembly by the piece of plastic, and lift it out. 
 
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            The logic board assembly. This is the heart of the computer, it contains the motherboard, CPU, RAM, V-RAM, PRAM battery, the hard drive, and the optical drive. 
 
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            To remove the drive, push it in, lift up, and then pull forward. 
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            As you pull the drive forward, disconnect the ribbon cable and set it aside. 
 
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            Remove the two phillips #00 screws. 
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            Then remove the board. This will reveal that it is a standard PATA drive. 
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            Congrats, the drive is free! You can use any PATA-tray loading drive in the iMac G3 which means you can install a CDRW to burn CDs in OS9 or X(if using OSX,install that DVD writer) but, of course only original drives will match the great look of the iMac). 
 
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
