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About Your System 17
Guidelines for Connecting Optional
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, use the System Setup program to enable ports on your system.
S
ee "Using the System Setup Program and UEFI Boot Manager" on
page 39.
NIC Indicator Codes
Figure 1-4. NIC Indicators
1 link indicator 2 activity indicator
Indicator Indicator Code
Link and activity
indicators are off
The NIC is not connected to the network.
Link indicator is green The NIC is connected to a valid network link
at 1000 Mbps.
Link indicator is amber The NIC is connected to a valid network link
at 10/100 Mbps.
Activity indicator is green Network data is being sent or received.
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book.book Page 17 Wednesday, May 12, 2010 9:26 PM