Boxed Processor Fan Heatsink Power Cable Connector Description; Fan Heatsink Power And Signal Specifications - Intel HH80552PG0962M - Pentium 4 3.4 GHz Processor Datasheet

The power header on the baseboard must be positioned to allow the fan heatsink power
cable to reach it. The power header identification and location should be documented in
the platform documentation, or on the system board itself.
location of the fan power connector relative to the processor socket. The baseboard
power header should be positioned within 4.33 inches from the center of the processor
socket.
Figure 21.

Boxed Processor Fan Heatsink Power Cable Connector Description

1 2 3 4
Table 35.

Fan Heatsink Power and Signal Specifications

+12 V: 12 volt fan power supply
IC:
Peak Fan current draw
Fan start-up current draw
Fan start-up current draw maximum duration
SENSE: SENSE frequency
CONTROL
NOTES:
1. Baseboard should pull this pin up to 5 V with a resistor.
2. Open Drain Type, Pulse Width Modulated.
3. Fan will have a pull-up resistor to 4.75 V, maximum 5.25 V.
92
Signal
Pin
Straight square pin, 4-pin terminal housing with
polarizing ribs and friction locking ramp.
1 GND
2 +12 V
0.100" pitch, 0.025" square pin width.
3 SENSE
CONTROL
4
Match with straight pin, friction lock header on
mainboard.
Description
Boxed Processor Specifications
Figure 22
Min Typ Max
10.2 12 13.8
— 1.1 1.5
— — 2.2
— — 1.0
— 2 —
21 25 28
shows the
Unit Notes
V
A
A
Second
pulses per
1
fan
revolution
2,3
kHz
Datasheet