854 Upgrade and Maintenance Manual TX300 S7 / RX350 S7
System board and components
14.4.3.2 Preliminary steps
Before replacing the onboard SAS enabling key, perform the following steps:
Ê Disable BitLocker functionality as described in section "Disabling BitLocker
functionality" on page 141.
Ê Locate the desired server as described in section "Locating the defective
server" on page 64.
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 the air duct as described in section "Removing the system air duct"
on page 100.
14.4.3.3 Replacing the onboard SAS enabling key
Ê Remove the defective onboard SAS enabling key as described in section
"Removing onboard SAS enabling key" on page 852.
Ê Install the new onboard SAS enabling key as described in section "Installing
the onboard SAS enabling key" on page 849.
14.4.3.4 Concluding steps
Perform the following procedures to complete the task:
Ê Reinstall the air duct as described in section "Installing the system air duct"
on page 102.
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