Lenovo ThinkEdge SE450 Maintenance Manual page 26

• Two 2.5-inch hot-swap SATA/NVMe drives (Drive 4, 5)
3 Power supply units (bay 2 and 1)
This server supports up to two units of CFF V4 (reverse fan) power supplies. N+1 redundancy is supported
when two units are installed. Following is the list of supported types:
• 1100-watt Platinum, input power 100-240 Vac
• 1800-watt Platinum, input power 200-240 Vac
• 1100-watt -48V dc
4 Power supply LEDs
• AC power LED (green)
Each hot-swap power supply unit comes with one AC and one DC power LED. When the AC power LED is
lit, it indicates that sufficient power is being supplied to the power supply through the power cord. During
normal operation, both the AC and DC power LEDs are lit.
• DC power LED (green)
Each hot-swap power supply unit comes with one AC and one DC power LED. When the DC power LED is
lit, it indicates that the power supply is supplying adequate dc power to the system. During normal
operation, both the AC and dc power LEDs are lit.
• Power supply error LED (yellow)
When the power supply error LED is lit, it indicates that the power supply has failed.
5 Threaded studs for grounding
Connect the grounding wires to these lugs.
6 USB 2.0 with Lenovo XClarity Controller management
Connection to XClarity Controller is primarily intended for users with a mobile device running the XClarity
Controller mobile application. When a mobile device is connected to this USB port, an Ethernet over USB
connection is established between the mobile application running on the device and the XClarity Controller.
Select Network in BMC Configuration to view or modify settings.
Only one mode is supported:
• BMC only mode
In this mode, the USB port is always solely connected to XClarity Controller.
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.
USB 3.0 connectors (1 and 2)
8
Connect a USB device, such as a mouse, keyboard, or other devices, to either of these connectors.
9 Front operator panel
See "Front operator panel" on page 19
10 External diagnostic handset connector
Connect the External diagnostic handset to this connector for system diagnostics and trouble shooting. See
"External LCD diagnostics handset" on page 20
ThinkEdge SE450 Maintenance Manual
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for details.
for details.