User`s manual

C-6
SC842 Chassis Manual
C-7 Front Jumper Locations and Pin Denitions
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 identied 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.
Connector
Pins
Jumper
Setting
3 2 1
3 2 1
Jumper Settings
Jumper Jumper Settings Note
JP25
Open: 45 degrees Celcius
1-2: 50 degrees Celcius
2-3: 55 degrees Celcius
OH TEMP:
Overheat temperature settings
JP29
1-2: Reset
2-3: No reset
MG9072 chip reset
JP30 --- For manufacturer's use only
JP53 --- For manufacturer's use only
JP54 --- For manufacturer's use only
F1
F2
F3
JP52
1
2
7
8
JP51
12
78
J8
7
J7
7
J6
7
J5
7
J10
7
JP46
JP53
JP30
JP54
JP291
3
JP33
1
3
JP25
1
3
MH1MH2MH3
MH4MH5MH6
+
C45
+
C44
+
C3
+
C85
+
C5
+
C34
C35
U31
U26
U25
C
A
D3
4
1
JP10
4
1
JP13
1
16
32
33
48
49
64
U40
JP44
JP45
BAR CODE
1.01REV:
SAS842TQ
MACH FINISH
30
ANGLE
SPECIFIED DIMENSIONS
UNLESS OTHERWISE
XXX
XX
X
.010
.03
.1
TOLERANCES
DECIMAL
ARE IN INCHES
ErniDESINGER:
DATE:
08/11/2010
PROJECT NAME:
SAN JOSE,CA 95131
DESIGNED BY SUPERMICRO U.S.A.
www.supermicro.com
TEL:[phone] FAX:[phone]
SILKSCREEN
PRIMARY-SIDE
S UPER
R
S UPER S UPER S UPER S UPER S UPER S UPER S UPER S UPER S UPER S UPER S UPER S UPER S UPER S UPER S UPER S UPER S UPER
RRRRRRRRRR
LED TEST
#4
#3
#2
#1
2-3:I2C
1-2:SGPIO
JP33:MODE
2-3: NO RST
1-2: RST
JP29:9072 RST
DESIGNED IN USA
SAS842TQ
REV 1.01
#0
+5VGND GND+12V
+5VGND
+12V
GND
C
C
C
2-3:55
1-2:50
OPEN:45
JP25:OH TEMP.
D3:OH/DRIVE FAIL
UPGRADE
SIDEBAND#2 I2C#2
I2C#1
SIDEBAND#1
JP25
JP54
JP29
JP33
JP53
JP30
Figure C-2: Front Jumpers