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4 PCI Express card slot
Used to attach an Ethernet card or any other supported PCI Express card.
Note: If a ThinkServer HBA is available, refer to its user guide for detailed information. The user guide is
available for download at:
http://www.lenovo.com/UserManuals
Physical link width Negotiable link width
Supported card length and height
x16 x16, x8, x4, x2, x1
Half-length, full-height card
5 8 9 Ethernet connectors
Used to attach an Ethernet cable for a LAN. Each Ethernet connector has two status LEDs to help you
identify the Ethernet connectivity, activity, and connection speed.
Note: The Ethernet connector 0 (callout 9 ) marked with “MGMT” is for system management by default.
However, you also can set the Ethernet connector 1 or 2 for system management use in the Setup Utility
program. See “Setting the mode of the Ethernet connectors” on page 57.
Ethernet status LED
Color Status
Description
Amber
On
The connection speed is 1000 Mbps.
Green On
The connection speed is 100 Mbps.
1 Left
None
Off
The connection speed is 10 Mbps.
Green On
The server is connected to a LAN.
None
Off
The server is disconnected from a LAN.
2 Right
Green
Blinking The LAN is connected and active.
6 USB connectors (4)
Used to attach a USB-compatible device, such as a USB keyboard, mouse, scanner, or printer. If you
have more than six USB devices, you can purchase a USB hub, which you can use to connect additional
USB devices.
7 VGA DB-15 connector
Used to attach a VGA-compatible video device, such as a VGA monitor.
10 Serial port
Used to attach a device that uses a 9-pin serial port.
24 ThinkServer RD540 User Guide and Hardware Maintenance Manual