Lan1/2/3/4 (Ethernet Ports); Unit Identifi Er Button; Fan Headers - Supermicro H8DGU-LN4F+ User Manual

LAN1/2/3/4 (Ethernet Ports)

Four Gigabit Ethernet ports (designated
LAN1/LAN2/LAN3/LAN4) are located
beside the VGA ports. Additionally,
for the H8DGU-LN4F+ serverboard,
there is a dedicated LAN for IPMI on
top of the two rear USB ports. These
Ethernet ports accept RJ45 type
cables.
Unit Identifi er Button
There is a Unit Identifi er (UID) button
on the rear I/O of the board. There is
also another UID button located on the
control panel. When you push either
UID button, both Rear UID and Front
Panel UID Indicators will illuminate.
Push either button again to turn off
both indicators. These UID indicators
provide easy identifi cation of a system
unit that may be in need of service.

Fan Headers

This motherboard has eight fan
headers (Fan1 to Fan8). These 4-pin
fans headers are backward compatible
with 3-pin fans. However, fan speed
control is available for 4-pin fans only.
The fan speeds are controlled by
IPMI. See the table on the right for pin
defi nitions
LAN Ports (LAN1/2/3/4)
Pin Defi nition
Pin# Defi nition
1 P2V5SB
2 TD0+
3 TD0-
4 TD1+
5 TD1-
6 TD2+
7 TD2-
8 TD3+
9 TD3-
NC indicates no connection.
Pin Defi nitions
Pin#
1
2
3
4
Fan Header
Pin Defi nitions
Pin#
1
2
3
4
2-19
Chapter 2: Installation
Pin# Defi nition
10 SGND
11 Act LED
12 P3V3SB
13 Link 100 LED
(Yellow, +3V3SB)
14 Link 1000 LED
(Yellow, +3V3SB)
15 Ground
16 Ground
17 Ground
18 Ground
UID Button
Defi nition
Ground
Ground
Button In
Ground
Defi nition
Ground
+12V
Tachometer
PWR Modulation