hp workstations zx6000, hp server rx2600 - operation and maintenance guide

Troubleshooting

Using the System’s LEDs and e-buzzer to Troubleshoot

Chapter 4

156

System Board Diagnostic LEDs

There are three additional LEDs that can help when troubleshooting the system. These

LEDs are locate on the system board close to the back of the system and can be viewed

through the small cooling holes in the system backplane.

Figure 4-7 Location of the STBY LED, F/W LED and BMC LED

F/W LEDBMC LED

STBY LED

Look through

Look through here

for the F/W and

BMC LEDs

here for the

STBY LED

Table 4-2 Description of the System Board LEDs

LED’s Name Description

STBY This standby LED comes on as soon as the system’s power cord is plugged

in. If this light is off when you plug it in, reseat the power supply, and if this

does not work, replace the power supply. See Chapter 2 for instructions.

BMC A few seconds after the system is plugged in this LED starts blinking, which

means that the Baseboard Management Controller is alive. If this LED is

not blinking and the STBY (standby)LED is on, you may have to replace the

system board.

F/W A few seconds after the system button is pressed in the system ﬁrmware

code fetch LED comes on indicating that the ﬁrmware has started the boot

process. If this LED does not come on, you may have to replace the system

board.