Lenovo ThinkSystem SR850 V3 - Page 30

– 1600-watt, input power 336 Vdc
– 1600-watt, input power -48 Vdc
5 OCP slot 1
The OCP slot supports the following:
• OCP module with two or four extra Ethernet connectors for network connections. One of the Ethernet
ports on the OCP module can also function as a management port with shared management capacity. If
the shared management port fails, traffic can automatically switch over to another port on the OCP
module.
Figure 4. OCP module with two Ethernet connectors Figure 5. OCP module with four Ethernet connectors
• Management NIC adapter. Install the management NIC adapter into the OCP slot in place of the OCP
module to function as a redundant XCC system management port.
6 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
laptop so that it is on the same network as the server default settings. A dedicated management network
provides additional security by physically separating the management network traffic from the production
network.
See the following for more information:
•
“Set the network connection for the Lenovo XClarity Controller” on page 65
• “XCC system management port LEDs” on page 45
7 USB 3.1 Gen 1 (5 Gbps) connectors
The USB 3.1 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.
8 VGA connector
Connect a monitor to this connector.
9 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.
10 OCP slot 2
OCP module with two or four extra Ethernet connectors for network connections. One of the Ethernet ports
on the OCP module can also function as a management port with shared management capacity. If the
shared management port fails, traffic can automatically switch over to another port on the OCP module.
22 ThinkSystem SR850 V3 System Configuration Guide