Supermicro SuperServer 5038MR-H8TRF, User Manual

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Chapter 5: Advanced Serverboard Setup
5-13
Fan Header
Pin Definitions
Pin# Definition
1 Ground
2 +12V
3 Tachometer
4 Pulse Width Modulation
(PWM)
Fan Header
This motherboard has one system fan
header (FAN1). This 4-pin fan header
is backward compatible with the
traditional 3-pin fan headers. However,
fan speed control is available for
4-pin fans only. The fan speeds are
controlled by Thermal Management
via the IPMI 2.0 interface. .
Internal Buzzer
The internal buzzer, located at SP1,
can be used to provide audible alarms
for various beep codes.
Internal Buzzer
Pin Definitions
Pin# Definitions
Pin 1 Pos. (+) Beep In
Pin 2 Neg. (-) Alarm Speaker
IPMB I
2
C SMB
A System Management Bus header
for the IPMI slot is located at JIPMB1.
Connect an appropriate cable here to
use the IPMB I
2
C connection on your
system.
SMB Header
Pin Definitions
Pin# Definition
1 Data
2 Ground
3 Clock
4 No Connection