User`s manual

2-20
X9SCV-Q User's Manual
T-SGPIO Headers
OH/Fan Fail LED
A
A
B
Serial_Link-SGPIO
PinDenitions
Pin# Denition Pin Denition
1 NC 2 NC
3 Ground 4 DATA Out
5 Load 6 Ground
7 Clock 8 NC
SGPIO 1/2 Headers
The SGPIO 1 and SGPIO 2 (Serial-Link
General Purpose Input/Output) headers
on JP2 and JP3 are located near the
SATA connectors on the motherboard.
These headers are used to communicate
with the enclosure management chip in
the system. See the table on the right for
pin denitions. Refer to the board layout
below for the locations of the headers.
Overheat/Fan Fail LED (JOH1)
The JOH1 header is used to connect an
LED to provide warnings of chassis over-
heat. This LED will also blink to indicate
a fan failure. Refer to the table on right
for pin denitions.
Overheat LED
PinDenitions
Pin# Denition
1 5vDC
2 OH Active
OH/Fan Fail LED
Status Message
State Message
Solid Overheat
Blinking Fan Fail
B