TX300 S7 / RX350 S7 Upgrade and Maintenance Manual 295
Hard disk drives / solid state drives
7.3.10 Upgrading to 8x 3.5-inch HDD configurations
7.3.10.1 Required tools
● Preliminary and concluding steps: tool-less
● Installing the HDD cage:
– Phillips PH2 / (+) No. 2 screw driver
7.3.10.2 Preliminary steps
Before enabling the second 3.5-inch HDD bay, perform the following steps:
Ê Disable BitLocker functionality as described in section "Disabling BitLocker 
functionality" on page 141.
Ê Shut down the server as described in section "Shutting down the server" on 
page 71.
Ê Remove the AC power cords from the PSU cable brackets and disconnect 
them from the system as described in section "Disconnecting the server 
from the mains" on page 72.
Ê When working on a rack-mounted server, extend it out of the rack as 
described in section "Extending the server out of the rack" on page 76.
If further required, remove the server from the rack as described in section 
"Removing the server from the rack" on page 77.
Ê Open the side / top cover as described in section "Removing the top cover" 
on page 79 (rack server) or "Removing the side cover" on page 88 (tower 
server).
Ê Remove all HDD modules from the server as described in section 
"Removing 3.5-inch HDD modules" on page 277.
Ê Pull out the ID card and open the front cover as described in section 
"Opening the server" on page 79.
Upgrade and Repair Units (URU)
Average task duration: 20 minutes