Fujitsu PRIMERGY TX2550 M5 Upgrade And Maintenance Manual page 237

Hard disk drive (HDD) / solid state disk (SSD)
Figure 135: Removing the defective 2.5-inch HDD/SSD SAS backplane (A)
▶ Remove four screws from the defective 2.5-inch HDD/SSD SAS backplane
(see circles).
TX2550 M5 Upgrade and Maintenance Manual 237