System information

26 Upgrade and Maintenance Manual RX2520 M1
Before you start
2.1.2 Upgrade and Repair Units (URU)
Upgrade and Repair Units are non hot-plug components that can be ordered
separately to be installed as options (Upgrade Units) or are available to the
customer through customer self service (Repair Units).
I Server management error messages and diagnostic indicators on the
front panel and system board will report defective Upgrade and Repair
Units as customer replaceable CSS components.
Upgrade and repair procedures involve shutting down and opening the server.
V CAUTION!
The device may be seriously damaged or cause damage if it is opened
without authorization or if repairs are attempted by unauthorized and
untrained personnel.
Components that are handled as Upgrade Units
– Processors (upgrade kits)
– Optical disk drives
– Backup drives
– Expansion cards
– Battery backup units
– Memory modules
– Front VGA module
Components that are handled solely as Repair Units
– CMOS battery
Upgrade and Repair Unit
(URU)