Fujitsu PRIMERGY TX2550 M5 Upgrade And Maintenance Manual page 190

Hard disk drive (HDD) / solid state disk (SSD)
Figure 99: Installing the new 4x 3.5-inch HDD SAS backplane (B)
▶ Ensure that the 4x 3.5-inch HDD SAS backplane is properly fitted into the
bottom rim and side guide (see arrows).
▶ Ensure that the upper edge of the SAS backplane must be on the same
height as HDD bay divider wall (see dashed line).
190 Upgrade and Maintenance Manual TX2550 M5