TX2550 M4 Upgrade and Maintenance Manual 343
Expansion cards and backup units
9.7.2.5 Concluding steps
Ê "Reassembling" on page 68
Ê "Connecting the power cord" on page 81
Ê "Switching on the server" on page 82
9.7.3 Replacing an FBU
V CAUTION!
● Dispose of used battery properly. Keep away from children.
● Do not throw flash backup units into the trash can. Batteries must be
disposed of in accordance with local regulations concerning special
waste.
9.7.3.1 Preliminary steps
Ê "Locating the defective server" on page 49
Ê "Shutting down the server" on page 52
Ê "Disconnecting the power cord" on page 53
Ê "Getting access to the component" on page 54
9.7.3.2 Removing the defective FBU
Ê Remove the FBU with the FBU holder, see section "Removing the FBU with
the holder" on page 341.
Ê Disconnect the FBU cable from the FBU.
Ê Remove the FBU from the holder.
Upgrade and Repair Unit
(URU)
Hardware: 10 minutes
Tools: tool-less
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