Operating instructions

4.2 Preparing to Install Components
To prepare your system for installation or replacement of components,
assemble the required equipment, perform shutdown procedures, and
attach an antistatic wrist strap.
Who should install components?
Refer to the following table to determine who should install or replace compo-
nents. Components in the "Customer" column can be added or replaced by cus-
tomers with appropriate technical training and experience. Components in the
"Service Provider" column can be replaced only by authorized service providers
or customers with a self-maintenance contract.
Customer Service Provider
DIMMs System board
CPU upgrades Fans
PCI options CD-ROM r/w drive
Power supply Operator control panel
Disk drive cages
Before installing components:
1. Shut down the operating system, according to the instructions in the operat-
ing system documentation.
2. Shut down peripheral devices.
3. Press the Power button on the system unit to the Off position.
4. Unplug the power cord.
5. Remove the side cover (pedestal) or top cover (rackmount).
6. Attach an antistatic wrist strap.
NOTE: It is not necessary to shut down the system if you are installing a third
power supply for redundancy or if you are replacing a faulty supply in a
three-supply configuration.
4-10 DS25 Owner’s Guide