Microprocessor Fan Power Connector Pinouts

4.12 Microprocessor Fan Power Connector Pinouts

Table 4–12shows the microprocessor fan power connector pinouts.

Table 4–12 Microprocessor Fan Power Connector Pinouts (J14)

Pin

Signal

Description

1

+12 V dc

2

FAN_CONN_L

Fan connected

3

Gnd

 

 

 

4.13 Soft Power Connector Pinouts

Table 4–13shows the soft power connector pinouts.

Table 4–13 Soft Power Connector Pinouts (J1)

Pin

Signal

Description

1

Input

System power on/off

2

Gnd

 

 

 

4.14 Multipurpose Connector Pinouts

J20 is a multipurpose connector that provides pins for the following functions:

System speaker

LEDs for power and the EIDE drive

Buttons for reset and halt

Table 4–14shows the multipurpose connector pinouts, and Figure 4–1shows the connector layout.

Table 4–14 Multipurpose Connector Pinouts (J20)

(Sheet 1 of 2)

 

 

 

 

Pin

Signal

Description

 

 

 

 

 

1

Gnd

 

2

HALT_BUTTON

Halt system

 

 

 

 

 

3

Gnd

 

4

RESET_BUTTON

Reset system

 

 

 

 

 

AlphaPC 164SX Connector Pinouts 4–9

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Compaq 164SX Microprocessor Fan Power Connector Pinouts, Soft Power Connector Pinouts, Multipurpose Connector Pinouts