Overheat Led/Fan Fail - Supermicro X7DWN Plus User Manual

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.
SMB
A System Management Bus header
is located at J18. Connect the ap-
propriate cable here to utilize SMB
on your system.
DIMM 4D
Fan5
DIMM 4C
DIMM 4B
DIMM 4A
Fan6
DIMM 3D
DIMM 3C
DIMM 3B
DIMM 3A
DIMM 2D
DIMM 2C
DIMM 2B
DIMM 2A
Intel 5400
(North Bridge)
DIMM 1A
DIMM 1B
DIMM 1C
DIMM 1D
SEPC
Slot6 PCI-E2 x8
LAN
CTRL
Slot5 PCI-E2 x8
Slot4 PCI-E x4
S I/O
USB 4
Slot3 PCI-E x8 BIOS
JI2C1
JI2C2
Slot2 PCI-X 100/133MHz
JWOR
Slot1 PCI-X 100/133MHz
Slot0 PCI-U
CPU FAN1 24-Pin PWR 4-Pin PWR 8-Pin PWR
FAN7
FAN1
JAR
3rd PWR Fail Detect
SMBUS_PS
CPU1
FAN2
CPU2
FAN3
FAN8
CPUFAN2
JWD
T-SGPIO2
CMOS Clear
Battery
T-SGPIO1
JWF1
JCF1
Intel ESB 2
(South Bridge)
VGA CTRL
FAN4
COM2
JL1 JK1
USB 2/3
JWOL
B
SMB
2-21
Chapter 2: Installation
Overheat LED
Pin Defi nitions
Pin# Defi nition
1 5vDC
2 OH Active
OH/Fan Fail LED
State Message
Solid Overheat
Blinking Fan Fail
SMB Header
Pin Defi nitions
Pin# Defi nition
1 Data
2 Ground
3 Clock
4 No Connection
A. OH/Fan Fail LED
B. SMB
A