E2000 datasheet(96/104 Pages) INTEL

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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 550 grams. See Chapter 5

and the appropriate Thermal and Mechanical Design Guidelines (see Section 1.2) 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 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 34

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.

The fan heatsink receives a PWM signal from the motherboard from the 4th pin of the

connector labeled as CONTROL.

The processor's fan heatsink requires a constant +12 V supplied to pin 2 and does not

support variable voltage control or 3-pin PWM control.

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. Figure 28 shows the

location of the fan power connector relative to the processor socket. The baseboard

power header should be positioned within 110 mm [4.33 inches] from the center of the

processor socket.

E2000 Fiches technique(PDF) 96 Page - Intel Corporation