Intel SPSH4 - Server Platform - 0 MB RAM, Technical Product Specification

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SPSH4 Server SystemTechnical Product Specification
Revision 1.11
Intel reference number 10736
79
7.2 Front Panel Board
The front panel board has five momentary switches and six LEDs visible through the chassis
front bezel. The five switches control power on/off, sleep mode, system reset, chassis ID, and
NMI. These switches are behind the front door of the bezel. The NMI switch is accessible via a
small hole in the front of the chassis and requires a small instrument to push it.
The six front panel LEDs are:
•
Power-on LED: Sold green indicates system power in a steady-on state and blinking green
indicates Advanced Configuration and Power Interface (ACPI) sleep mode
•
LAN 1 activity LED: Green during network activity
•
LAN 2 activity LED: Green during network activity
•
HDD activity LED: Green indicates system hard drive activity and amber indicates hard drive
fault
•
Chassis ID LED: Blue LED provides system identification to aid in servicing
•
System status: Green indicates normal system status and amber indicates fault for power
supply, hard drive, or cooling subsystem.
The front panel also contains seven connectors:
•
A 34-pin connector provides control and status information to/from the baseboard.
•
Two internal 10-pin connectors provide data and power for the USB and serial port B RJ45
ports
•
Two external connectors provide data and power for the external USB and RJ-45 Serial B
ports
•
Two connectors are for chassis intrusion switches.
The front panel board mounts to sheetmetal at the front of the system and this is secured to the
chassis with one 6-32 screw.
In addition, the front panel board has a 24C02LM8 serial EEPROM for Field Replaceable Unit
information access. The 24C02LM8 has an I
2
C slave address of 0xA0/A1h.The front panel
board has a DS1621S digital thermostat for measuring ambient air temperature into the server
system. The DS1621S has an I
2
C slave address of 0x9A/9Bh.