SUPER MICRO Computer 5015A-EHF Power LED, NMI Button, Fan Headers, Overheat/Fan Fail LED JOH

SUPERSERVER 5015A-EHF User's Manual

Power LED

The Power LED connector is located on pins 15 and 16 of JF1. This con- nection is used to provide LED indica- tion 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

The X7SPE-HF has two fan headers. Fan1 is the CPU fan and Fan2 is for the system cooling fan. These fans are 4-pin fan headers. However, Pins 1~3 of the fan headers are backward compatible with the traditional 3-pin fans. (The speeds of 4-pin (PWM) fans are controlled by Thermal Man- agement via BIOS Hardware Moni- toring in the Advanced Setting. (The default setting is Disabled.) Note: Please use all 3-pin fans or all 4-pin fans on a motherboard. Please do not use 3-pin fans and 4-pin fans on the same board.

Power LED

Pin Definitions (JF1)

Pin# Definition

155V Stby

16Control

NMI Button

Pin Definitions (JF1)

Pin# Definition

1Signal

2Ground

Fan Header

Pin Definitions

Pin# Definition

1Ground

2+12V

3Tachometer

4PWM Control

Overheat/Fan Fail LED (JOH)

The JOH header is used to connect an LED to provide warnings of chas- sis overheat. This LED will also blink to indicate a fan failure. Refer to the table on right for pin definitions.

Overheat LED Pin Definitions

Pin# Definition

15vDC

2OH Active

OH/Fan Fail LED

Status Message

State	Message
Solid	Overheat
Blinking	Fan Fail

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