A
A. Overheat LED
B. T-SGPIO1
C. T-SGPIO2
Overheat LED/Fan Fail
The JOH1 header is used to connect
an LED indicator to provide warnings
of chassis overheating or fan failure.
This LED will blink when a fan failure
occurs. Refer to the table on right for
pin denitions.
Overheat LED
Pin Denitions
Pin# Denition
1 5vDC
2 OH Active
OH/Fan Fail LED
Status
State Message
Solid Overheat
Blinking Fan Fail
T-SGPIO 1/2 Headers
Two SGPIO (Serial-Link General
-Purpose Input/Output) headers are
located on the baseboard. These
headers support serial_link interface
for onboard SATA connections. Refer
to the table on the right for pin deni-
tions.
T-SGPIO
Pin Denitions
Pin# Denition Pin Denition
1 NC 2 NC
3 Ground 4 Data
5 Load 6 Ground
7 Clock 8 NC
C
B