Unit Identifi Cation Switch/Led; Power Smb (I C) Connector - Supermicro X8DTU-LN4F+ User Manual

Unit Identifi cation Switch/LED
A Unit Identifi er switch (UID) and a rear UID
LED indicator (LE11) are located next to LAN
ports on the back of the chassis. When the
user pushes the rear UID switch, the rear
UID LED (LE11) will be turned on. Push the
UID switch again to turn off the LED indica-
tor. The UID switch provides easy identifi ca-
tion of a system unit that may be in need of
service. See the tables on the right for more
information.
2
Power SMB (I C) Connector
Power System Management Bus (I
2
nector (JPI C) monitors power supply, fan
and system temperatures. See the table on
the right for pin defi nitions.
A B
LAN4 LAN3
UID
J1
LAN2
J2
X8DTU-LN4F+
Rev. 2.0
D20
Winbond
BMC
Intel
COMS
Clear
IOH-36D
JBT1
Intel
BIOS
ICH10R
SATA0~5
LE1
FAN3
FPCTRL
T-SGPIO2
2 C) Con-
VGA1
COM1
LAN2 LAN1
USB0/1
IPMI_LAN
PHY
LAN1
SP1
JBT1
FAN8/CPU1
CPU1
CPU2
C
3-31
Chapter 3: Installation
UID Switch (UID)
Pin Defi nitions
Pin# Defi nition
1 Ground
2 Ground
3 Button In
4 Ground
UID LED (LE11)
Status
Color/State OS Status
Blue: On Windows OS Unit Identifi ed
Blue: Linux OS Unit Identifi ed
Blinking
PWR SMB
Pin Defi nitions
Pin# Defi nition
1 Clock
2 Data
3 PWR Fail
4 Ground
5 +3.3V
A. Rear UID Switch
B. Rear UID LED (LE11)
C. PWR SMB Connector