Chapter 3
Troubleshooting
Troubleshooting Using LED Indicators
32
Memory Extender Boards
The 32 DIMM memory extender board has two power status LEDs-1.25V and 1.5V. See Figure 3-4 on
page 33.When the LEDs are on, each respective voltage is present on the memory extender board.
Table 3-8
I/O Baseboard LEDs, Buttons, and Sensors
LED/Button
Color
Status
Condition
12V VRM Power
LED
Green
On
12V VRM is functioning
5V VRM Power
LED
Green
On
5V VRM is functioning
3.3V VRM Power
LED
Green
On
3.3V VRM is functioning
MP Heartbeat
Green
Blinking
The management processor is functioning correctly
MP Self Test LED
Amber
On
Off
The management processor is executing the
internal self test
The management processor has passed the
internal self test
BMC Heartbeat
Green
Blinking
The baseboard management controller is
functioning correctly
3.3 VSB Power
LED
Green
On
Standby power is available
MP Soft Reset
Button
N/A
Press
Resets the management processors values