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LAN1/2 (Ethernet Ports)
Two gigabit Ethernet ports (desig-
nated LAN1 and LAN2) are located
beside the VGA port on the I/O back-
plane. These ports accept RJ45 type
cables.
Power SMB (I
2
C) Header
The
Power System Management
Bus (I
2
C) header (JPI
power supply, fan and system tem-
peratures. See the table on the right
for pin defi nitions.
IPMB
IPMB is a System Management Bus
header for IPMI 2.0. Connect the ap-
propriate cable here to use the IPMB
2
I
C connection on your system.
Overheat LED/Fan Fail (JOH1)
The JOH1 header connects to 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.
Unit Identifi er Button
A Unit Identifi er (UID) button is located next to the Fan 6 header. When you push
the UID button, both Rear UID and Front Panel UID Indicators will illuminate. Push
it again to turn off both Indicators. These UID Indicators provide easy identifi cation
of a system unit that may be in need of service.
Chapter 5: Advanced Serverboard Setup
2
C) monitors
5-19
PWR SMB
Pin Defi nitions
Pin#
Defi nition
1
Clock
2
Data
3
PWR Fail
4
Ground
5
+3.3V
SMB Header
Pin Defi nitions
Pin#
Defi nition
1
Data
2
Ground
3
Clock
4
No Connection
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
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