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1 Front panel connector
Used to connect the front panel cable.
2 Internal dual-port USB connector 1
Used to connect the front panel USB cable.
3 Internal dual-port USB connector 2
Reserved for the manufacturer.
4 Intelligent Diagnostics Module connector
Used to connect the cable of the Intelligent Diagnostics Module.
5 Front VGA connector
Used to connect the cable of the front VGA connector on the front panel of the server.
6 SATA connector 0
Used to connect the signal cable of the slim optical drive.
7 Platform Controller Hub (PCH)
This chip on the system board serves as a PCH, which provides the data buffering and interface arbitration
required to ensure that system interfaces operate efciently and provides the bandwidth necessary for the
system to achieve peak performance.
8 System board battery
Your server has a special type of memory that maintains the date, time, and conguration information for
built-in features. The system board battery keeps the information active when you turn off the server.
9 Internal USB Type A connector 1
Used to connect a device that uses a USB Type A connector. For example, in some situations, you might
want to connect a USB key directly to the system board. You can connect it to an internal USB Type A
connector.
10 ThinkServer Management Module Premium connector
Used to connect a server option named ThinkServer Management Module Premium (TMM Premium) to
enable advanced remote management functions on your server. See “Installing or removing the ThinkServer
Management Module Premium” on page 94
.
11 Internal USB Type A connector 2
Used to connect a device that uses a USB Type A connector. For example, in some situations, you might
want to connect a USB key directly to the system board. You can connect it to an internal USB Type A
connector.
40 ThinkServer RD540 User Guide and Hardware Maintenance Manual