SUPER MICRO Computer m28sab/m28sab-oem Front Jumper Locations and Pin Definitions, JP61, JP62 JP25

Safety Information and Technical Specifications

3-3 Front Jumper Locations and Pin Definitions

		A18	JSM2	A1
		MH1
	JP61
	1-2 WITH FAN
	2-3 NO FAN
JP61	1
	3	JP61		Y2
		B18 SAS IN #4-#7		B1
		JP54
		1 FAN

44	34 UPGRADE #2	6	UPGRADE #1	22	12		A18		JSM1	A1
			523
	1	2
		JP47	JP46							MH2
	5	62	1
			33
	23						Y1
				34	U40	44	B18	SAS IN #0-#3		B1
							RP14
			TP4 TP3
			ACT LED TEST
	JP62 1-2 WITH FAN 2-3 NO FAN

JP3

1

DESIGNED IN USA

4

JP25: OH TEMP OPEN 45 C 1-2 50 C

2-3 55 C

ARB CODE

	+	JP62			+
		3	1				+
				JP25
C84	JP25		1		C78		1	4
R69		3
				BPN-SASI28A		C77	+12V JP1	+5V
			9071 RST				REV 1.00

Figure 3-2: Front Jumper

Explanation of Jumpers

To modify the operation of the backplane, jumpers can be used to choose between optional settings. Jumpers create shorts between two pins to change the function of the connector. Pin 1 is identified with a square solder pad on the printed circuit board.

Note: On two-pin jumpers, "Closed" means the jumper is on and "Open" means the jumper is off the pins.

3 2 1

Connector

Pins

Jumper

3 2 1

Setting

General Jumper Settings

Jumper	Jumper Settings	Note
JP61	1-2: Fan enabled	Enables or disables the fan power.
	2-3: Fan disabled
JP62	1-2: Fan enabled	Enclosure monitor enable/disable.
	2-3: Fan disabled
JP25	Open: 45o C	Allows the overheat temperature to be
	1-2: 50o C	adjusted.
	2-3: 55oC

3-3