Intel QX6700 HH80562PH0678M User Manual

Datasheet

91

+12 V: 12 volt fan power supply

11.4

12

12.6

V

-

IC: 

- Maximum fan steady-state current draw
- Average fan steady-state current draw     
- Maximum fan start-up current draw
- Fan start-up current draw maximum 

duration

—
—
—
—

1.2
0.5
2.2
1.0

—
—
—
—

A
A
A

Second

-

SENSE: SENSE frequency

—

2

—

pulses per 

fan 

revolution

1

1. Baseboard should pull this pin up to 5 V with a resistor.

CONTROL

21

25

28

Hz

2, 3

2. Open drain type, pulse width modulated.

3. Fan will have pull-up resistor to 4.75 V maximum of 5.25 V.

Pin

Signal

1 2 3 4

1

2

3

4

GND

+12 V

SENSE
CONTROL

Straight square pin, 4-pin terminal housing with
polarizing ribs and friction locking ramp.

0.100" pitch, 0.025" square pin width.

Match with straight pin, friction lock header on
mainboard.