LE3100MICH S L8YC Intel, LE3100MICH S L8YC Datasheet - Page 98

• Manufacturer Part Number: LE3100MICH S L8YC
• Manufacturer: Intel

Specifications of LE3100MICH S L8YC

• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

7.2.3
7.3
7.3.1
Figure 7-5.
96
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.
Electrical Requirements
Fan Heatsink Power Supply
The boxed processor's fan heatsink requires a +12V 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
must provide a matched power header to support the boxed processor.
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 boxed processor's fanheat sink 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.
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.
Boxed Processor Fan Heatsink Power Cable Connector Description
1 2 3 4
Pin
1
2
4
3
+12 V
Signal
GND
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.
Figure 7-6
Boxed Processor Specifications
Figure
7-5. Baseboards
shows the
Table 7-1
Datasheet