Supermicro SuperServer 7089P-TR4T - BPN-X11 Opi Connections

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SuperServer 7089P-TR4T User's Manual
4.4 BPN-X11OPi Connections
Fan Headers
There are 16 system/CPU fan headers (Fans 1-8_1) on reverse side of the BPN-X11OPi
midplane. All these 4-pin fans headers are backward-compatible with the traditional 3-pin
fans. However, fan speed control is available for 4-pin fans only by Thermal Management
via the IPMI 2.0 interface. See the table below for pin denitions.
Fan Header
PinDenitions
Pin# Denition
1 Ground
2 +12V
3 Tachometer
4 PWM (Power Width Modulation)