For access, remove these parts in order, if any:• “Computer cover” on page 32• “Optical drive” on page 33• “Front bezel” on page 34• “Primary hard disk drives” on page 35Removal stepsPCI-Express cardPrerequisiteBefore you start, read Generic Safety and Compliance Notices, and print the following instructions.For access, remove the “Computer cover” on page 32.Chapter 8. CRU replacement 41