Boxed Processor Cooling Requirements; Fan Cable Connector Pin Out For 4-Pin Active Cek Thermal Solution; Pwm Fan Frequency Specifications For 4-Pin Active Cek Thermal Solution; Fan Specifications For 4-Pin Active Cek Thermal Solution - Intel E5205 - Cpu Xeon 1.86Ghz Fsb1066Mhz 6M Lga771 Dual Core Tray Datasheet

The fan power header on the baseboard must be positioned to allow the fan heat sink
power cable to reach it. The fan power header identification and location must be
documented in the suppliers platform documentation, or on the baseboard itself. The
baseboard fan power header should be positioned within 177.8 mm [7 in.] from the
center of the processor socket.
Table 8-1.

PWM Fan Frequency Specifications for 4-Pin Active CEK Thermal Solution

Description
PWM Control
Frequency Range
Table 8-2.

Fan Specifications for 4-Pin Active CEK Thermal Solution

+12 V: 12 volt fan power supply
IC: Fan Current Draw
SENSE: SENSE frequency
Figure 8-11. Fan Cable Connector Pin Out for 4-Pin Active CEK Thermal Solution
Table 8-3.

Fan Cable Connector Pin Out for 4-Pin Active CEK Thermal Solution

Pin Number
8.3.2

Boxed Processor Cooling Requirements

As previously stated the boxed processor will be available in two product
configurations. Each configuration will require unique design considerations. Meeting
the processor's temperature specifications is also the function of the thermal design of
the entire system, and ultimately the responsibility of the system integrator. The
processor temperature specifications are found in
8.3.2.1 1U Passive/3U+ Active Combination Heat Sink Solution (1U Rack
Passive)
In the 1U configuration it is assumed that a chassis duct will be implemented to provide
a minimum airflow of 15 cfm at 0.38 in. H
impedance. The duct should be carefully designed to minimize the airflow bypass
110
Min Frequency
21,000
Description
1
2
3 Sense: 2 pulses per revolution
4
Nominal Frequency
25,000
Typ Max
Min
Steady Steady
10.8 12 12
N/A 1 1.25
2 2
Signal
Ground
Power: (+12 V)
Control: 21 KHz-28 KHz
Chapter 6
O (25.5 m 3 /hr at 94.6 Pa) of flow
2
Boxed Processor Specifications
Max Frequency
28,000
Max
Startup
13.2
1.5
Pulses per fan
2 2
revolution
Color
Black
Yellow
Green
Blue
of this document.
Unit
Hz
Unit
V
A