Item
Ports, panels, or slots
Icon
Description
6
VGA port
Enables you to connect a display device to the system. For more
information, see the Technical specifications section.
7
Serial port
Enables you to connect a serial device to the system. For more
information, see the Technical specifications section.
8
iDRAC9 Enterprise port
Enables you to remotely access iDRAC. For more information, see the
iDRAC User’s Guide at
Dell.com/idracmanuals
.
9
CMA power port
N/A
The Cable Management Arm (CMA) power port enables you to connect
to the CMA.
10
System identification button
The System Identification (ID) button is available on the front and back of
the systems. Press the button to identify a system in a rack by turning on
the system ID button. You can also use the system ID button to reset
iDRAC and to access BIOS using the step through mode.
NIC indicator codes
Each NIC on the back panel has indicators that provide information about the activity and link status. The activity LED indicator indicates if
data is flowing through the NIC, and the link LED indicator indicates the speed of the connected network.
Figure 12. NIC indicator codes
1
link LED indicator
2
activity LED indicator
Table 9. NIC indicator codes
Status
Condition
Link and activity indicators are off
The NIC is not connected to the network.
Link indicator is green and activity indicator is blinking green The NIC is connected to a valid network at its maximum port speed and
data is being sent or received.
Link indicator is amber and activity indicator is blinking
green
The NIC is connected to a valid network at less than its maximum port
speed and data is being sent or received.
Link indicator is green and activity indicator is off
The NIC is connected to a valid network at its maximum port speed and
data is not being sent or received.
Link indicator is amber and activity indicator is off
The NIC is connected to a valid network at less than its maximum port
speed and data is not being sent or received.
Link indicator is blinking green and activity is off
NIC identify is enabled through the NIC configuration utility.
Dell EMC PowerEdge R640 Installation and Service Manual
PowerEdge R640 system overview
17