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• Slot 15-18 supports FHFL PCIe adapters with PCIe riser extender installed.
– Slot 16 supports DW FHFL GPU installed in slot 15 and 16
– Slot 18 supports DW FHFL GPU installed in slot 17 and 18
4
Power supply bays 1-4 (bottom to top)
Install power supply units to these bays, connect them to power cords. Make sure the power cords are
connected properly. See
system.
For information about the LEDs, see
5
OCP slot 2
The system may support a 2-port or a 4-port OCP module for network connections. Port numbering are
shown in the illustrations below.
Figure 4. Port numbering — 2-port OCP module
Figure 5. Port numbering — 4-port OCP 3.0 module
6
Serial port
Connect a 9-pin serial device to this connector. The serial port is shared with XCC. XCC can take control of
the shared serial port to redirect serial traffic, using Serial over LAN (SOL).
7
NMI button
Press this button to force a nonmaskable interrupt to the processor. You might have to use a pen or the end
of a straightened paper clip to press the button. You can also use it to force a blue-screen memory dump.
Use this button only when you are directed to do so by Lenovo Support.
8
/
10
/
11
USB 3.2 Gen 1 (5 Gbps) connectors
The USB 3.2 Gen 1 (5 Gbps) connectors are direct connect interfaces (DCIs) for debugging, which can be
used to attach a USB-compatible device, such as a USB keyboard, USB mouse, or USB storage device.
9
VGA connector
Connect a monitor to this connector.
12
XCC system management port (1 GB RJ-45)
The server has a 1 GB RJ-45 connector dedicated to Lenovo XClarity Controller (XCC) functions. Through
the system management port, you can access the Lenovo XClarity Controller directly by connecting your
laptop to the management port using an Ethernet cable. Make sure that you modify the IP settings on the
ThinkSystem SR860 V3 System Configuration Guide
22
"Technical specifications" on page 3
"Power supply LEDs" on page
for the power supplies supported by this
34.
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