About Your System 15
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.
See "Using the System Setup Program and UEFI Boot Manager" on
page 35.
4 Power supply 305 W power supply.
5 Cable clasp Secures the power cable.
6 USB connectors (4) Connect USB devices to the system. The
ports are USB 2.0-compliant.
7 eSATA connector Connects additional storage devices.
8 Serial connector Connects a serial device to the system.
9 Video connector Connects a VGA display to the system.
10 Ethernet connector Integrated 10/100/1000 NIC connector.
11 PCIe expansion card
slots (4)
Connects up to four PCI Express
expansion cards.
Item Indicator, Button, or
Connector
Icon Description
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