Dynatron K985 User Manual

NEW PRODUCT SPEC SHEET

Model Number: K985

• Recommend for Intel® Core™ i5 I5-750; Xeon® Processor 3400 Series; Core™ i7 Processors

I7-870 & I7-860; Socket LGA1156

• Active Cooler for 3U Server & Up

Overall Specification:

• Dimension: 106.0 x 106.0 x 72.6mm

• Weight: 500g

• Material: Aluminum Radial fin Heat Sink with Copper Inserted

• 9225 Round Fan Top-Down Blowing

• Captive with Screw-on Retention

• Finger Guard Protection

• Back Strip Set is included

• Thermal Grease Pre-Printed with GE-Toshiba TIG830SP

• Support CPU Power up to 95 Watts

Fan Specification:

• Dimension: Ø92.0 x 25.0 mm

• Bearing: Single-Ball

• Rated Voltage: 12V

• Rated Speed:

o At Duty Cycle 0~20%: 700 RPM
o At Duty Cycle 50%: 1400 RPM
o At Duty Cycle 100%: 2500 RPM

• Rated Input Power:

o At Duty Cycle 0~20%: 0.72 W
o At Duty Cycle 50%: 1.08 W
o At Duty Cycle 100%: 3.6 W

• Rated Airflow:

o At Duty Cycle 0~20%: 14.98 CFM
o At Duty Cycle 50%: 29.90 CFM
o At Duty Cycle 100%: 46.96 CFM

• Rated Static Pressure:

o At Duty Cycle 0~20%: 0.290 mm-H
o At Duty Cycle 50%: 1.070 mm-H
o At Duty Cycle 100%: 2.977 mm-H

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• Rated Acoustical Noise:

o At Duty Cycle 0~20%: 14.70 dBA
o At Duty Cycle 50%: 18.50 dBA
o At Duty Cycle 100%: 29.85 dBA

• Lead Wire Pin Out:

o Pin#1-Black(-)
o Pin#2- Yellow(+)
o Pin#3- Green(Tachometer/ Signal Output)
o Pin#4- Blue (PWM)

Performance Chart, K985 Thermal Resistance & Noise VS. Cooling Fan Speed

Ther mal Resistance (°c/ w )

0.33

0.31

0.29

0.27

0.25

0.305

0.28

0.255

2500 2000 1500 1000

Fan S peed (RPM)

0.331

29

24

19

R-th
Noise

Noi se L evel (dBA)

14

9/11/2009 Lang

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