Control Panel

The switches and LEDs located on the SYS-822GA-NGR3 server control panel are described below.

Control Panel Features
Features	Description
Power LED	One LED that indicates if the system is powered on
Storage Drive LED	One LED that indicates activity on the installed storage devices
NIC1 and NIC2 LED	Two LEDs that indicate activity on the corresponding LAN1 or LAN 2 connection on the installed AOC cards
Information LED	One LED that indicates system failure, UID, BMC, or RoT status
Power Fail LED	One LED that indicates a power failure
Reset Switch	One reset switch
Power Button	One power button to power the system on or off

Power Button

Action	Result
Press	Turns the DC power (also known as "main power") on or off
Hold 4 seconds	Forces a shutdown

Power LED

The Power LED (green) indicates the state of the system power and is coupled with the Information LED to indicate the status of various RoT functions.

Function	Status	Description
Power	Steady ON	DC power (main power) is on
RoT	Blinking at 4 Hz, with Information LED flashing blue at 10 Hz	BIOS firmware is updating
RoT	Blinking at 4 Hz	Checking BIOS/BMC integrity
RoT	Blinking, two blinks at 4 Hz, 1 pause at 2 Hz (with Information LED flashing blue at 10 Hz) Essentially a blink pattern at 4 Hz of on-on-off-off, repeating	BMC firmware updating
RoT	Blinking at 1 Hz (with Information LED solid red)	Fault detected

Storage Drive LED

When flashing, the Storage Drive LED (amber) indicates activity on the installed storage devices. Only activity on storage devices connected to the PCH will be reflected on the Storage Drive LED. These devices include NVMe drives in drive bays cabled to the PCH (but not an HBA) and the M.2 NVMe internal storage devices.

The storage activity associated with other HBAs or NVMe drives can be monitored on the drive carriers.

NIC1 and NIC2 LEDs

When flashing, the NIC1 and NIC2 LEDs (green) indicate activity on the corresponding LAN1 or LAN 2 connection on the installed AOC cards.

On 1U systems, the LAN1 LED will reflect the activity on AIOM port 1. Activity on the other AIOM ports will not cause LED activity on the front panel. Similarly, on 2U systems, the LAN1 LED corresponds to port 1 on the AIOMs, and LAN2 corresponds to port 2 on the AIOMs. Activity on additional ports, such as port 3 and port 4, will not be reflected on the front panel.

In addition to the front panel LAN1 and LAN2 LEDs, the AIOM module will have individual Link and Activity LEDs.

These Link and Activity LEDs follow the guidelines outlined in the OCP 3.0 specification, which allows for the uniformity of operation across all OCP 3.0 products. The guidelines include color, luminous intensity, and functional requirements. Please refer to the OCP 3.0 specification for more information.

Information LED

The Information LED (blue, red) is a bi-color LED that communicates information about failures, UID, BMC, and RoT status in the system. See the summary table below. Some status definitions are coupled with the Power LED status to differentiate between different states in the system.