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Step 1
Disconnect all power to the computer system. Unplug all electrical cables from the back of the computer and press the power button to discharge any remaining energy from the unit.
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Step 2
Remove the rear or side of the computer to expose the interior. Thumbscrews are common to remove the panel.
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Step 3
Inspect the inside cavity of the computer and locate the rear of the CD-ROM drive. The unit typically sits above all other PC components. Look to the front of the computer and follow the unit back into the system.
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Step 4
Unplug the CD-ROM unit's cable from the main system board. The connection can be a thin ribbon-like cable with a bar-shaped connector that plugs into the rear of the CD-ROM unit. The cable may look like a small tube-like cable, as well. Take the power cable from the back of the CD-ROM.
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Step 5
Use a screwdriver to remove the retaining screws holding the CD ROM in place. With the screws removed, slide the CD-ROM unit forward until it can be pulled from the front of the PC entirely.
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Step 6
Slide the new CD-ROM unit into the existing slot and push into the computer until flush with the front panel. Secure the new CD-ROM in place with the screws that were removed.
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Step 7
Attach the existing cables to the CD ROM-drive and plug the power cable in as well.
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Step 8
Reattach the rear or side computer access panel and return power to the PC.
