36
37
English
4.4 Pin Definitions
HDD Power Connectors
(PWR_HDD1)
(PWR_HDD2)
(see p.33, No. 1, 2)
+5V
+12V
GND1
GND2
The 4-pin connectors
provide power to the
backplane.
MiniSAS HD Connector
(see p.33, No. 3)
This connector is used to
connect a mini-SAS HD
cable to the motherboard.
SMB Connector
(5-pin BMC_SMB1)
(see p.33, No. 4)
1
+3V_SEL
SCL
SDA
GND
GND
The SMB (SubMiniature
version B) connector provides
a communication interface
between the backplane and the
motherboard.
USB 2.0 Header
(9-pin USB_HEADER1)
(see p.34, No. 9)
DUMMY
GND
GND
+B
-B
USB_PWR
+A
-A
USB_PWR
1
The header supports two USB 2.0
ports on the front panel.
Front and Auxiliary Panel
Header
(17-pin AUX_PANEL1)
(see p.34, No. 10)
PWR BT
N
P
LE
D
-
P
LE
D
+
H
D
LE
D
-
1
NMI BT
N
+3
V
S
B
LA
N
1
LE
D
-
G
N
D
LA
N
2
LE
D
-
H
D
LE
D
+
LO
C
A
T
O
R
LE
D
2-
RST BT
N
LO
C
A
T
O
R
LE
D
1-
LO
C
A
T
O
R
B
T
N
#
G
N
D
LO
C
A
T
O
R
LE
D
2+
G
N
D
This header supports multiple
functions on the front panel.