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Boxed Processor Specifications

Datasheet

7.1.2

Boxed Processor Fan Heatsink Weight

The boxed processor fan heatsink will not weigh more than 450 grams. See Chapter 5

and the Intel® Celeron® Processor 400 Series Thermal and Mechanical Design

Guidelines for details on the processor weight and heatsink requirements.

7.1.3

Boxed Processor Retention Mechanism and Heatsink

Attach Clip Assembly

The boxed processor thermal solution requires a heatsink attach clip assembly, to

secure the processor and fan heatsink in the baseboard socket. The boxed processor

will ship with the heatsink attach clip assembly.

7.2

Electrical Requirements

7.2.1

Fan Heatsink Power Supply

The boxed processor's fan heatsink requires a +12 V power supply. A fan power cable

will be shipped with the boxed processor to draw power from a power header on the

baseboard. The power cable connector and pinout are shown in Figure 27. Baseboards

must provide a matched power header to support the boxed processor. Table 33

contains specifications for the input and output signals at the fan heatsink connector.

The fan heatsink outputs a SENSE signal, which is an open- collector output that pulses

at a rate of 2 pulses per fan revolution. A baseboard pull-up resistor provides VOH to

match the system board-mounted fan speed monitor requirements, if applicable. Use of

the SENSE signal is optional. If the SENSE signal is not used, pin 3 of the connector

should be tied to GND.

NOTES:

Pin 1: Ground; black wire.

Pin 2: Power, +12 V; yellow wire.

Pin 3: Signal, Open collector tachometer output signal requirement: 2 pulses per

revolution; green wire.

Figure 27.

Boxed Processor Fan Heatsink Power Cable Connector Description

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