Intel SE7221BK1-E manual Hardware Monitoring, Mean Time Between Failures Mtbf Test Results

SE7221BK1-E Technical Product Specification

Table 85. Absolute Maximum Ratings

Operating Temperature	5 °C to 50 °C 1
Storage Temperature	-55 °C to +150 °C
Voltage on any signal with respect to ground	-0.3	V to Vdd + 0.3V 2
3.3 V Supply Voltage with Respect to ground	-0.3	V to 3.63 V
5 V Supply Voltage with Respect to ground	-0.3	V to 5.5 V
Notes:

1.Chassis design must provide proper airflow to avoid exceeding the processor maximum case temperature.

2.VDD means supply voltage for the device

11.1Mean Time Between Failures (MTBF) Test Results

This section provides results of MTBF testing done by a 3rd party testing facility. MTBF is a standard measure for the reliability and performance of the board under extreme working conditions. For the SE7221BK1-E server board, MTBF was measured at 190,727 hours at 40 degrees Centigrade.

12. Hardware Monitoring

12.1 Monitored Components

The Intel® Server Board SE7221BK1-E has an integrated LM96000 chip that is responsible for hardware monitoring. The LM96000 chip provides basic server hardware monitoring which alerts a system administrator if a hardware problem occurs on the board. The NS super IO PC87427 has implemented some FAN speed control/monitor pins. Below is a table of monitored headers and sensors on the board.

Table 86. Monitored Components

	Item		Description
Voltage		P_VCC (PIN #24)	Monitors processor voltage	LM96000
		P12V (PIN #21)	Monitors +12Vin for system +12V supply	LM96000
		P1V8 (PIN #22)	Monitors 1.8V DDRII power	LM96000
		P5V (PIN #20)	Monitors +5V	LM96000
Fan Speed		PWM1 (PIN #24)	Controls system front fans	LM96000
			(JP5J1,JP5J2,JP7A1,JP6A1,J6J3,J6J1,J6J4,J6J2)
		PWM2 (PIN #10)	Controls CPU fans (J7A1)	LM96000
		PWM3 (PIN #13)	N/A	LM96000
		TACH1 (PIN #11)	Monitors CPU fan (J7A1)	LM96000
		TACH2 (PIN #12)	Monitors SYS FAN_3 (JP5J1)	LM96000
		TACH3 (PIN #9)	Monitors SYS FAN_4 (JP5J2)	LM96000

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