Overheat Led/Fan Fail - Supermicro X7DB8 User Manual

Overheat LED/Fan Fail

(JOH1)
The JOH1 header is used to connect
an LED to provide warning of chassis
overheating. This LED will blink to in-
dicate a fan failure. Refer to the table
on right for pin defi nitions.
SMB
A System Management Bus header is
located at J18. Connect the appropri-
ate cable here to utilize SMB on your
system.
GLAN1
GLAN2
SIMLP IPMI
SEPC
PCI-Exp x8
PCI-Exp x4
Pin#
1
2
State
Solid
Blinking
SMB PS PSF
J3P
JAR
SCSI CTRL
B
320 SCSI Channel B
2-21
Chapter 2: Installation
Overheat LED
Pin Defi nitions
Defi nition
5vDC
OH Active
OH/Fan Fail LED
Message
Overheat
Fan Fail
SMB Header
Pin Defi nitions
Pin# Defi nition
1 Data
2 Ground
3 Clock
4 No Connection
A. OH/Fan Fail LED
8-pin PWR
B. SMB
A