Lenovo ThinkSystem SR630 V3 System Configuration Manual page 38

Rear components overview
Ethernet connectors
Figure 5. OCP module (two connectors) Figure 6. OCP module (four connectors)
The OCP module provides two or four extra Ethernet connectors for network connections.
By default, any Ethernet connector on the OCP module can also function as a management connector using
the shared management capacity.
Note: The OCP module is an optional part. It is default to be installed in the rear and optional in the front of
the server.
Hot-swap drives and drive bays
The drive bays on the front and rear of your server are designed for hot-swap drives. The number of the
installed drives in your server varies by model. When you install drives, follow the order of the drive bay
numbers.
The EMI integrity and cooling of the server are protected by having all drive bays occupied. Vacant drive
bays must be occupied by drive fillers.
NMI button
Press this button to force a nonmaskable interrupt (NMI) to the processor. By this way, you can make the
operating system halt (such as Windows Blue Screen of Death) and take a memory dump. You might have to
use a pen or the end of a straightened paper clip to press the button.
PCIe slots
The PCIe slots are on the rear of the server and your server supports up to three PCIe slots on riser 1 and 2
assemblies.
Power supply units
The hot-swap redundant power supply helps you avoid significant interruption to the operation of the system
when a power supply fails. You can purchase a power supply option from Lenovo and install the power
supply to provide power redundancy without turning off the server.
On each power supply, there are three status LEDs near the power cord connector. For information about the
LEDs, see "System LEDs and diagnostics display" on page 40.
USB 3.2 Gen 1 (5Gbps) connectors
The USB 3.2 Gen 1 (5Gbps) 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.
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