Fujitsu PRIMERGY RX4770 M5 Upgrade And Maintenance Manual page 160

Hard disk drive (HDD) / solid state disk (SSD)
▶ Open the cable clamp left of the SAS expander board to release the cables
(see circle).
▶ Release the FBU carrier and push it a little bit outside the server (see
"Removing the FBU carrier" on page
▶ Disconnect the cables from the SAS expander board (see arrows).
Figure 65: Removing the SAS expander board (B)
▶ Release the two screws on the SAS expander board (see circles).
▶ Pull out the SAS expander board in a slight angle to remove it upward (see
arrow).
Installing the new SAS expander board
Figure 66: Installing the SAS expander board (A)
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Upgrade and Maintenance Manual RX4770 M5