Specifications

J3 LAN/ID LED Connector

Pin Definition Pin Definition

1 LAN1_LED+ 2 LAN1_LED-

3 LAN2_LED+ 4 LAN2_LED-

5 LAN3_LED+ 6 LAN3_LED-

7 ID LED+ 8 ID LED-

9 ID SW+ 10 ID SW-

11 KEY PIN 12 PWM

FAN Signal Related Connector Pin Definitions

NOTE: The FAN signal naming is based on HW circuit design only. It might

be different from the system fan naming.

J4 Fan TACH & PWM Connector

Pin Definition

1 GND

2 NC

3 FAN1_TACH

4 PWM1(Default)

J7 Fan TACH & PWM Connector

Pin Definition

1 GND

2 NC

3 FAN7_TACH

4 PWM1(Default)

J8 PWM Connector

Pin Definition

1 GND

2 PWM2

3 FAN1_TACH

Chapter 3: Replacing Pre-Installed

Components