HP ZE4900 - Manual (Page 91)

5–8 Maintenance and Service Guide
Removal and Replacement Procedures
g. Remove the 4 PM2.5×4.0 screws 1 that secure the hard
drive frame to the hard drive.
h. Remove the hard drive frame 2.
i. Remove the hard drive connector 3.
Disassembling the hard drive
Reverse the above procedure to reassemble and install the
hard drive.