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22 About Your System
Guidelines for Connecting External Devices
• Turn off power to the system and external devices before attaching a new
external device. Turn on any external devices before turning on the system
(unless the documentation for the device specifies otherwise).
• Ensure that the appropriate driver for the attached device has been
installed on the system.
• If necessary to enable ports on your system, use the System Setup program.
S
ee "Using the System Setup Program and UEFI Boot Manager
" on
page 61
.
8 power supplies (2) Depending on your configuration, your
system may have a redundant power
supply or a non-redundant power supply.
NOTE: The figure shows a system with a
redundant power supply.
Redundant power supply — 580 W
Non-redundant power supply — 525 W
9 security cable slot Connects a cable lock to the system.
Item Indicator, Button, or
Connector
Icon Description
book.book Page 22 Tuesday, June 9, 2009 4:09 PM