System board LEDs

The illustration in this section shows the LEDs on the system board.

Figure 1. System board LEDs

Table 1. LEDs on the system board
Callout	Callout
`1` System error LED	`2` System ID LED
`3` DIMM error LEDs (32)	`4` Fan error LEDs (8)
`5` FPGA error LED	`6` FPGA heartbeat LED
`7` FPGA power LED	`8` XCC heartbeat LED

1 System error LED

When this yellow LED is lit, one or more LEDs elsewhere in the server might also be lit to direct you to the source of the error. For more information, see Rear view LEDs.

2 System ID LED

The blue system ID LED helps you visually locate the server. A system ID LED is also located on the front of the server. Each time you press the system ID button, the state of both the system ID LEDs changes. The LEDs can be changed to on, blinking, or off.

3 DIMM error LEDs

When a DIMM error LED is lit, it indicates that the corresponding memory module has failed.

4 Fan error LEDs

When a fan error LED is lit, it indicates that the corresponding system fan is operating slowly or has failed.

5 FPGA error LED

The FPGA error LED helps you identify different FPGA errors.

Status	Color	Description
On	Green	FPGA running image is test build image.
Blinking	Green	Blinking (blinking slowly, about one flash per second): One or more power faults occur. Blinking (blinking rapidly, about four flashes per second): FPGA does not assert RSMRST_N.
Off	None	No power faults occur.

6 FPGA heartbeat LED

The FPGA heartbeat LED helps you identify different FPGA errors.

Status	Color	Description
On or Off	Green	FPGA does not work.
Blinking	Green	FPGA works normally.

7 FPGA power LED

The FPGA power LED helps you identify different FPGA errors.

Status	Color	Description
On	Green	The FPGA power is on.
Blinking	Green	Blinking (blinking slowly, about one flash per second): The FPGA power is off. Blinking (blinking rapidly, about four flashes per second): The FPGA permission is delayed.

8 XCC heartbeat LED

The XCC heartbeat LED helps you identify the XCC status.

Status	Color	Description
On	Green	The XCC is not alive.
Blinking	Green	The XCC is alive.
Off	None	The XCC is not alive.

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