Headers And Connectors - Supermicro SuperServer SYS-E102-9AP-LN4-E User Manual

4.2 Headers and Connectors

Fan Headers
There is one fan header with 4-pins on the motherboard. Pins 1-3 are backward compatible
with traditional 3-pin fans. The onboard fan speeds are controlled by Thermal Management
(via Hardware Monitoring) in the BIOS.
Speaker
If you wish to use an external speaker, connect a cable to pins 1-4 on the JD1 header. Refer
to the table below for pin definitions.
General Purpose I/O Header
The JGP1 (General Purpose Input/Output) header is a general purpose I/O expander on a
pin header via the SMBus. Each pin can be configured to be an input pin or output pin. The
GPIO is controlled by the SIO NCT5523D (pins GP20 - GP27). Refer to the table below for
pin definitions.
Fan Header
Pin Definitions
Pin# Definition
1 Ground (Black)
2 2.5A/+12V (Red)
3 Tachometer
4 PWM_Control
Speaker Connector
Pin Definitions
Pin# Signal
1 P5V
2 NC
3 NC
4 R_SPKPIN
GPIO Header
Pin Definitions
Pin# Definition Pin#
1 P3V3SB 2
3 GP_P3V3_GP0 4
5 GP_P3V3_GP1 6
7 GP_P3V3_GP2 8
9 GP_P3V3_GP3 10
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Chapter 4: Motherboard Connections
Definition
GND
GP_P3V3_GP4
GP_P3V3_GP5
GP_P3V3_GP6
GP_P3V3_GP7