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2-30
X9DRG-HF/X9DRG-HTF Motherboard User’s Manual
Power SMB (I
2
C) Connectors
Power System Management Bus (I
2
C)
Connectors (JI
2
C1/JI
2
C2) monitor
power supply, fan and system tem-
peratures. See the table on the right
for pin denitions.
PWR SMB
PinDenitions
Pin# Denition
1 Clock
2 Data
3 PWR Fail
4 Ground
5 +3.3V
A. T-SGPIO1
B. T-SGPIO2
C. T-SGPIOS
D. JI
2
C1
E. JI
2
C2
T-SGPIO1/2/-S Headers
Three SGPIO (Serial-Link General
Purpose Input/Output) headers (T-
SGPIO1/2, T-SGPIO-S) are located
on the motherboard. These head-
ers support Serial_Link interface for
onboard SATA connections. See the
table on the right for pin denitions.
Note: NC= No Connection
T-SGPIO
PinDenitions
Pin# Denition Pin Denition
1 NC 2 NC
3 Ground 4 Data
5 Load 6 Ground
7 Clock 8 NC
A
B
C
D
E