D3030 (BX920 S2)
Technical Manual
31
LED indicators
3.5
LED indicators
3.5.1
Internal indicators
There are several diagnostic LEDs on the system board, which are not visible
when the housing is closed.
By pressing the CSS button (INDICATE CSS BUTTON, see item 5 in the
following figure), the defective component can also be displayed in the power-
off state (power plug disconnected).
Figure 7: LEDs
LED Indicator
Meaning
1
Mezzanine card 1
yellow
Error on Mezzanine card 1
2
DIMMs 1D - 1F
yellow
Faulty memory module
3
CPU 1
yellow
CPU faulty
4
DIMMs 1A - 1C, 2A - 2C
yellow
Faulty memory module
5
CSS button
none
Activates the LEDs in case of an error
6
CPU 2
yellow
CPU faulty
7
Mezzanine card 2
yellow
Error on Mezzanine card 2
CPU 1
CPU 2
1
2
3
4
5
6
7