SUPER MICRO Computer S120T, SERIES3800 user manual Power On LED, NMI Button, Fan Headers

SERIES3800/S120T (7045A-C3/7045A-CT) User's Manual

HDD LED

The HDD LED connection is located on pins 13 and 14 of JF1. This LED is used to display all IDE and SATA activity. See the table on the right for pin definitions.

Power On LED

The Power On LED connector is lo- cated on pins 15 and 16 of JF1 (use JLED for a 3-pin connector). This connection is used to provide LED indication of power being supplied to the system. See the table on the right for pin definitions.

NMI Button

The non-maskable interrupt button header is located on pins 19 and 20 of JF1. Refer to the table on the right for pin definitions.

Fan Headers

There are eight fan headers on the serverboard, all of which are 4-pin fans. (Pins 1-3 of the fan headers are backward compatible with the traditional 3-pin fans.) See the table on the right for pin definitions. The onboard fan speeds are controlled by Thermal Management (via Hard- ware Monitoring) under the Advanced Section in the BIOS. The default is disabled. When using Thermal Man- agement setting, please use all 3-pin fans or all 4-pin fans.

HDD LED

Pin Definitions (JF1)

Pin# Definition

13Vcc

14HD Active

Power LED

Pin Definitions (JF1)

Pin# Definition

155V Stby

16Control

NMI Button

Pin Definitions (JF1)

Pin# Definition

19Control

20Ground

Fan Header

Pin Definitions

(FAN1-8)

Pin# Definition

1Ground (Black)

2+12V (Red)

3Tachometer

4PWM Control

Note: Fan 7 is for the CPU1 and Fan8 is for the CPU2 heat sink.

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