Hitachi Compute Rack 220S Replacement Manual page 36

Non hot-swappable component

Non hot-swappable component requires shutting down the system unit and
disconnecting the AC cables while replacement.
In the CR 220S, the following CRUs are non hot-swappable:
– Fan. See
Replacing a fan on page 4-10.
– DIMM. See
Replacing a DIMM on page 4-13.
– PCI card. See Replacing a PCI card on page 4-19.
2-4 Replaceable parts
Hitachi Compute Rack 220S CRU Replacement Guide