With all screws, the optical drive, and the pair of screws beneath it removed the backplate may now be gently pried apart from the main case with the use of plastic spudger. Work your tool about the entirety of the case and take care to never pry too hard on any single segment. If stuck near the hinge, ensure the capture screws are fully unscrewed.

Once removed, the internals will appear as pictured. Marked in red is the CPU fan we will be replacing.