T-Sgpio Headers; Overheat Led/Fan Fail (Joh1) - Supermicro X8DTU User Manual

T-SGPIO Headers

Two SGPIO (Serial-Link General
Purpose Input/Output) headers (T-
SGPIO-1/T-SGPIO-2) are located at
below the front panel control connec-
tor (JF1) on the motherboard. These
headers support serial link interfaces
for the onboard SATA connectors. See
the table on the right for pin defi ni-
tions. Refer to the board layout below
for the location.

Overheat LED/Fan Fail (JOH1)

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 defi nitions.
Fan8
(CPU2 Fan) P2-DIMM3A
P2-DIMM3B
P2-DIMM2A
P2-DIMM2B
P2-DIMM1A
PHY
P2-DIMM1B
CPU2
LAN CTRL
JPL1
SXB2: PCI-E 2.0 x 8
J1
UIOP
J2
SXB1: PCI-E 2.0 x 16
J10
Pin#
1
3
5
7
JPI2C
CPU1
Battery
X8DTU/-F
JBAT1
Buzzer
SP1
P1-DIMM1B
P1-DIMM1A
P1-DIMM2B
P1-DIMM2A
P1-DIMM3B
P1-DIMM3A
J3 SXB3: PCI-E 2.0 x 8 in x 4 Slot
LE1
C
B
Intel I5520
ME Mode JOH1
JP3
North Bridge
T-SGPIO2
J17
JPRST1
JTAG Of CPLD
JWD
CPLD
JPB
Intel ICH10R
JPG1
South Bridge
BMC CTRL
BIOS USB2/3 JLPC1
JBT1
(ME Rec.)
COM2
Fan5
Fan6
JI2C1 USB4/5
IPMB
USB6 USB7 J12
JI2C2
2-25
Chapter 2: Installation
T-SGPIO
Pin Defi nitions
Defi nition Pin Defi nition
NC 2 NC
Ground 4 Data
Load 6 Ground
NC 8 NC
Note: NC= No Connections
Overheat LED
Pin Defi nitions
Pin# Defi nition
1 5vDC
2 OH Active
OH/Fan Fail LED
Pin Defi nitions
State Message
Solid Overheat
Blinking Fan Fail
A. T-SGPIO1
B. A. T-SGPIO2
C. Overheat/Fan Fail LED
(JOH1)
Fan1
Fan2
Fan3
Fan4
JF1
A