Supermicro SUPERSERVER 5018A-LTN4, User Manual

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Chapter 5: Advanced Serverboard Setup
5-13
Fan Header
Pin Defi nitions
Pin# Defi nition
1 Ground (Black)
2 +12V (Red)
3 Tachometer
4 PWM_Control
Fan Headers
There are three fan 4-pin headers.
Pins 1-3 are backward compatible
with the traditional 3-pin fans, but you
can use 4-pin fans to take advantage
of the fan speed control using Pulse
Width Modulation through the BMC.
This allows the fan speeds to be
automatically adjusted based on the
motherboard temperature. Refer to the
table on the right for pin defi nitions.
Chassis Intrusion
A Chassis Intrusion header is located
at JL1 on the motherboard. Attach the
appropriate cable from the chassis to
inform you of a chassis intrusion when
the chassis is opened.
Chassis Intrusion
Pin Defi nitions (JL1)
Pin# Defi nition
1 Intrusion Input
2 Ground
Internal Buzzer (SP1)
The Internal Buzzer (SP1) can be
used to provide audible indications for
various beep codes. See the table on
the right for pin defi nitions.
Internal Buzzer
Pin Defi nition
Pin# Defi nitions
Pin 1 Pos. (+) 5V
Pin 2 Neg. (-) Beep In
DOM PWR Connector (JSD1)
The Disk-On-Module (DOM) power
connector, located at JSD1, provides
5V (Gen1/Gen) power to a solid-state
DOM storage device connected to one
of the SATA ports. See the table on the
right for pin defi nitions.
DOM PWR
Pin Defi nitions
Pin# Defi nition
1 5V
2 Ground
3 Ground
Other Connectors