Table 8. Components on the rear of the server
Callout Callout
1 3.5-inch rear drive bays (4) 2 PCIe slot (on riser 0 assembly, PCIe4 ×16 LP)
3 PCIe slot (on riser 0 assembly, PCIe4 ×16 FH/HL)
4 Power supply 1
5 Power supply 2 (optional)
6 NMI button
7 USB 3.0 connector 8 VGA connector
9 USB 3.0 connectors (2)
10 Network management interface
11 Ethernet connectors on OCP 3.0 Ethernet adapter
(optional)
Note: For more information about each component, see “Rear components overview” on page 13.
Rear components overview
Drive LEDs
Each hot-swap drive comes with an activity LED and status LED and the signals are controlled by the
backplanes. Different colors and speeds indicate different activities or status of the drive. The following
illustration shows the LEDs on a Hard disk drive or solid–state drive.
Figure 2. Drive LEDs
Drive LED
Status
Description
1 Drive status LED (right) Solid yellow The drive has an error.
Blinking yellow (blinking slowly, about one
flash per second)
The drive is being rebuilt.
Blinking yellow (blinking rapidly, about four
flashes per second)
The RAID adapter is locating the drive.
2 Drive activity LED (left) Solid green The drive is powered but not active.
Blinking green The drive is active.
Ethernet connectors
The OCP 3.0 Ethernet adapter provides two or four extra Ethernet connectors for network connections.
One of the Ethernet connectors on the OCP 3.0 Ethernet adapter can also function as a management
connector using the shared management capacity. If the shared management connector fails, traffic can
automatically switch over to another connector on the adapter.
Chapter 2. Server components 13
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