Supermicro SUPERSERVER 5016i-URF, User Manual

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ERVER 5016i-URF User's Manual
Fan Header
Pin Defi nitions
Pin# Defi nition
1 Ground (Black)
2 +12V (Red)
3 Tachometer
4 PWM_Control
Fan Headers
The X8SIU-F has four fan headers (Fan1
~ Fan4). These are all 4-pin fan headers,
however pins 1-3 are backward compat-
ible with traditional 3-pin fans. A fan speed
control setting in the BIOS (Hardware
Monitoring section) allows the BIOS to
automatically set fan speeds based on
the system temperature. The default
setting is Disabled, which allows the on-
board fans to run at full speed. Refer to
the table on the right for pin defi nitions.
Note : Please use all 3-pin fans or all
4-pin fans on a motherboard. Please do
not mix 3-pin fans and 4-pin fans on the
same board.
Chassis Intrusion
A Chassis Intrusion header is located at
JL1 on the motherboard. Attach the ap-
propriate cable from the chassis to inform
you of a chassis intrusion when the chas-
sis is opened.
Unit ID Switch
There are three Unit Identifi cation (UID)
devices on the motherboard. The Control
Panel UID LED is connected to pin 7
of JF1. When the user pushes the rear
UID switch, the Control Panel UID LED
and the back panel UID LED (LE5) will
turn on. Push the rear UID switch again
to turn off both Indicators. These UID
Indicators provide easy identifi cation of
a system unit that may be in need of
service.
UID Switch
Pin# Defi nition
1 Ground
2 Ground
3 Button In
4 Ground