TX300 S7 / RX350 S7 Upgrade and Maintenance Manual 559
Expansion cards and backup units
Ê When working on a rack-mounted server, secure it in the rack as described
in section "Sliding the server into the rack" on page 132.
If the server has been completely removed from the rack for maintenance
purposes, reinstall and secure it in the rack as described in section
"Mounting the server in the rack" on page 130.
Ê Reconnect the AC power cords to the power supply units and secure them
with PSU cable brackets as described in section "Connecting the server to
the mains" on page 133.
Ê If applicable, update the firmware of the RAID controller that has been
connected to the BBU as described in section "Updating RAID controller
firmware" on page 153.
Ê Enable boot watchdog functionality as described in section "Enabling SVOM
boot watchdog functionality" on page 159.