Intel SDS2 manual Miscellaneous Headers, Fan Headers, Chassis Intrusion

Connections				Intel® Server Board SDS2
		Keyboard		Mouse
	Pin	Signal Name	Pin	Signal Name
	1	KBDATA	1	MSDATA
	2	N/C	2	N/C
	3	GND	3	GND
	4	Fused 5V	4	Fused 5V
	5	KBCLK	5	MSCLK
	6	N/C	6	N/C

8.7Miscellaneous Headers

8.7.1Fan Headers

There are two fan connectors for processors and four system fan connectors. All six fans are monitored by the BMC and they all share the same pin-out.

			Table 74. Fan Header Pin-out
Pin	Signal Name	Type	Description
1	GND	Power	GROUND is the power supply ground
2	12V	Power	Power Supply 12 V
3	Fan Tach	Out	FAN_TACH signal is connected to the BMC to monitor the FAN speed

8.7.2Chassis Intrusion

The BMC monitors the chassis intrusion switch by polling the ADM1026 device. The cable from the chassis cover is connected through the 2-pin header below. To disable chassis intrusion detection, short the 2-pin header with a jumper.

Table 75. Chassis Intrusion Header Pin-out

Pin Signal name

1CHASSIS_INTR

2GND

8.7.3External SCSI Activity LED Input Signal Connector

A 4-pin header (labeled HDD LED at CN44) is provided on the Server Board to track SCSI drive activity on the Hot Swap Back-plane. The following table details the pin-out of the header. This allows two RAID controller cards to connect their disk activity cables to the front panel hard disk LED activity light. Note that IDE hard disk activity LED is not enabled on the SDS2 board via the front panel connector at CN37. Pins 2 and 3 are tied together routed through an AND gate to Pin 9 of CN37 front panel connector.

86	Revision 1.2
Order Number:	A85874-002