Intel Pentium 4 Processor in the 478-PinPackage at 1.40 GHz, 1.50 GHz, 1.60 GHz, 1.70 GHz, 1.80 GHz, 1.90 GHz, and 2GHz

Boxed Processor Specifications
Datasheet 91
NOTE:
1. Motherboard should pull this pin up to V
CC
with a resistor.
8.4 Thermal Specifications
This section describes the cooling requirements of the fan heatsink solution utilized by the
boxed processor.
Table 37. Fan Heatsink Power and Signal Specifications
Description Min Typ Max Unit Notes
+12V: 12 volt fan power supply 10.2 12 13.8 V
IC: Fan current draw 740 mA
SENSE: SENSE frequency 2
pulses per fan
revolution
1
Figure 36. MotherBoard Power Header Placement Relative to Processor Socket