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A1SAi & A1SRi Series Motherboard User’s Manual
Power SMB (I
2
C) Connector
Power System Management Bus (I
2
C)
Connector (JPI
2
C1) monitors power
supply, fan and system temperatures.
See the table on the right for pin
definitions.
PWR SMB
Pin Definitions
Pin# Definition
1
Clock
2
Data
3
PWR Fail
4
Ground
5
NC
System Management Bus Header
A System Management Bus header
for IPMI 2.0 is located at JIPMIB1.
Connect the appropriate cable here
to use the IPMI I
2
C connection on
your system.
SMBus Header
Pin Definitions
Pin# Definition
1
Data
2
Ground
3
Clock
4
No Connection
Battery
JD1
FAN1
FAN2
FAN3
I-SA
TA4
I-SA
TA5
J1
J3
JPI2C1
JPW1
JSD1
JTPM1
VGA
LED8
LED3
LED7
JBT1
1
JOH1
JL1
JI2C1
JI2C2
JPK1
JWD1
JPG1
JIPMB1
COM2
COM1
JF1
USB 3.0-2
LAN3/4 LED
LAN2/LAN4
LAN1/LAN3
USB2.0-0/1
USB3.0-0/1
USB 3.0-3
IPMI_LAN
PCI-E 2.0 X8
DIMMA1
DIMMA2
DIMMB2
DIMMB1
I-SA
TA0
A1SAi/A1SRi Series Motherboard
Rev. 1.00
FP
CTRL
JPL1
BIOS
Marvell
PHY
BMC
Bar Code
JUIDB1
CPU
SP1
I-SA
TA2
I-SA
TA3
I-SA
TA1
LED2
A. SMBus for IPMI
B. PWR SMBus
A
B
