Supermicro SuperServer series - Page 26

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SuperServer E200-9AP User's Manual
Fan Headers
There are two 4-pin fan headers on the motherboard (FAN1, FAN2). Although pins 1-3 of the
fan headers are backward compatible with the traditional 3-pin fans, we recommend you use
4-pin fans to take advantage of the fan speed control via Pulse Width Modulation through
the BMC. This allows the fan speeds to be automatically adjusted based on the motherboard
temperature.
Fan Header
Pin Denitions
Pin# Denition
1 Ground (Black)
2 +12V (Red)
3 Tachometer
4 PWM Control
HDD LED/UID Switch
The HDD LED Switch connection is located on pins 13 and 14 of JF1. Attach a cable to Pin
14 to show hard drive activity status.
HDD LED
Pin Denitions (JF1)
Pin# Denition
13 3.3V Standby
14 HDD Active
Power LED
The Power LED connection is located on pins 15 and 16 of JF1.
Power LED
Pin Denitions (JF1)
Pin# Denition
15 3.3V
16 Power LED