Intel Server Board S2400BB

Intel® Server Board S2400BB TPS
Revision 2.0
88
10.3 BMC Boot/Reset Status LED Indicators
During the BMC boot or BMC reset process, the System Status LED and System ID LED are used to indicate
BMC boot process transitions and states. A BMC boot will occur when AC power is first applied to the system.
A BMC reset will occur after: a BMC FW update, upon receiving a BMC cold reset command, and upon a BMC
watchdog initiated reset. The following table defines the LED states during the BMC Boot/Reset process.
Table 44. BMC Boot/Reset Status LED Indicators
BMC Boot/Reset State
Chassis
ID LED
Status
LED
Comment
BMC
/Video memory test failed
Solid
Blue
Solid
Amber
Nonrecoverable condition. Contact your Intel
®
representative for
information on replacing this motherboard.
Both Universal Bootloader (u-Boot)
images bad
Solid
Blue
Solid
Amber
Nonrecoverable condition. Contact your Intel
®
representative for
information on replacing this motherboard.
BMC in u
-Boot
Blink
Blue 3Hz
Blink
Green
1Hz
Blinking green indicates degraded state (no manageability), blinking
blue indicates u-Boot is running but has not transferred control to
BMC Linux. Server will be in this state 6-8 seconds after BMC reset
while it pulls the Linux image into flash.
BMC Booting Linux
Solid
Blue
Solid
Green
Solid green with solid blue after an AC cycle / BMC reset, indicates
that the control has been passed from u-Boot to BMC Linux itself. It
will be in this state for ~10-~20 seconds.
End of BMC boot/reset process.
Normal system operation
Off
Solid
Green
Indicates BMC Linux has booted and manageability functionality is up
and running. Fault/Status LEDs operate as per usual.
10.4 Post Code Diagnostic LEDs
A bank of eight POST code diagnostic LEDs are located on the back edge of the server next to the stacked
USB connectors. During the system boot process, the BIOS executes a number of platform configuration
processes, each of which is assigned a specific hex POST code number. As each configuration routine is
started, the BIOS displays the given POST code to the POST code diagnostic LEDs. The purpose of these
LEDs is to assist in troubleshooting a system hang condition during the POST process. The diagnostic LEDs
can be used to identify the last POST process to be executed. See Appendix D for a complete description of
how these LEDs are read, and for a list of all supported POST codes
10.5 12 Volt Stand-By Present LED
This LED is illuminated when a power cord (AC or DC) is connected to the server and the power supply is
supplying 12 Volt Stand-by power to the server board. This LED is intended as a service caution indicator to
anyone accessing the inside of the server system.
10.6 Fan Fault LEDs
The server board includes a Fan Fault LED next to each of the six system fans and both CPU fans. The LED
has two states: On and Off. The BMC lights a fan fault LED if the associated fan-tach sensor has a lower
critical threshold event status asserted. Fan-tach sensors are manual re-arm sensors. Once the lower critical
threshold is crossed, the LED remains lit until the sensor is rearmed. These sensors are rearmed at system DC
power-on and system reset.
10.7 Memory Fault LEDs
The server board includes a Memory Fault LED for each DIMM slot. When the BIOS detects a memory fault
condition, it sends an IPMI OEM command (Set Fault Indication) to the BMC to instruct the BMC to turn on the
associated Memory Slot Fault LED. These LEDs are only active when the system is in the ‘on’ state. The BMC
will not activate or change the state of the LEDs unless instructed by the BIOS.