K985 - Dynatron CPU Cooler K985 3U LGA1155/LGA1156 Aluminum | Aztek Computers
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SKU: QNV8AMMRWC |  Mfg. Part: K985  | UPC: 855700010060  |  0 Reviews  |     Share

K985 - Dynatron CPU Cooler K985 3U LGA1155/LGA1156 Aluminum Heatsink/ Fan Retail

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Product Overview

Fan InformationNumber of Fans: 1Fan Speed (rpm): 1 x 2500 rpmFan Bearing Type: Dual Ball BearingAir Flow: 1 x 47 CFMHeatsink InformationCompatible Processor Socket: Socket H3 LGA-1150, Socket H2 LGA-1155, Socket H LGA-1156Interfaces/PortsConnectors: 4-pin PWMPower DescriptionInput Voltage: 12 V DCPhysical CharacteristicsMaterial: Aluminum/Copper FinForm Factor: InternalFan Diameter: 1 x 92 mmHeight: 2.9"Width: 4.2"Depth: 4.2"Weight (Approximate): 1.10 lbMiscellaneousCompatibility: Intel Sandy Bridge Xeon Processors:12201220L122512301235124012451260L127012751280Application/Usage: ProcessorCertifications & Standards: ULEnvironmentally Friendly: YesEnvironmental Certification: RoHS

Expert Overview

The Dynatron CPU Cooler K985 is an internal cooling solution designed for specific Intel processor sockets in 3U server and desktop environments. This unit features a single 92mm fan with a dual ball bearing for consistent operation, capable of speeds up to 2500 RPM and an airflow of 47 CFM. The heatsink is constructed from aluminum with a copper insert, intended to dissipate heat effectively from compatible CPUs. It connects via a 4-pin PWM connector, allowing for variable fan speed control based on thermal load. This cooler is suitable for systems utilizing Intel Sandy Bridge Xeon Processors, including models such as the 1220, 1225, 1230, and others listed, as well as select Intel Core i3, i5, and i7 processors for LGA1156 sockets. It addresses the need for reliable thermal management in systems where space and specific socket compatibility are key considerations, helping to maintain operational stability for supported processors.

Technical Specifications

CPU Socket
LGA 1155/LGA 1156 CPU Supported
LGA 1155: Intel Sandy Bridge Xeon Processors 1220, 1220L, 1225,1230, 1235, 1240, 1245, 1260L, 1270, 1275 1280
LGA1156: Intel Core i3 i3-530 i3-540, Core i5 i5-650, i5-650, i5-660, i5-661 i5-670 I5-750 Xeon Processor 3400 Series Core i7 Processors, I7-870 I7-860 Solution
Desktop 3u and UP Material
Aluminum Radial Fin Heatsink with Copper Inserted Fan Dimensions
92 x 92 x 25 mm Speed
At Duty Cycle 20%: 1000 RPM
At Duty Cycle 50%: 1800 RPM
At Duty Cycle 100%: 2500 RPM Bearing
2 Ball Bearing Rated Voltage
12 V Power
At Duty Cycle 20%: 1.08W
At Duty Cycle 50%: 1.8 W
At Duty Cycle 100%: 3.6 W Air Flow
At Duty Cycle 20%: 18.784 CFM
At Duty Cycle 50%: 33.80 CFM
At Duty Cycle 100%: 46.96 CFM Noise Level
At Duty Cycle 20%: 17.00 dBA
At Duty Cycle 50%: 22.7 dBA
At Duty Cycle 100%: 29.85 dBA Air Pressure
At Duty Cycle 20%: 0.018 inch-H2O
At Duty Cycle 50%: 0.060 inch-H2O
At Duty Cycle 100%: 0.117 inch-H2O Lead Wire Pin Out
Pin1-Black (-)
Pin2-Yellow (+)
Pin3-Green (Techometer/Signal output)
Pin4-Blue (PWM) Item Dimension (L"xW"xH")
3.6 x 3.6 x 1

Weight
1.10 lb

Warranty Information
1 Year

Product Details

  • Manufacturer:
  • Model Number:
  • ASIN:
  • UPC:
  • Condition:
  • Weight:
  • Dimensions:
  • Updated:
  • Added:
  • Dynatron
  • K985
  • B004HST4BC
  • 855700010060
  • New
  • 1.13 lbs
  • 4 X 4 X 4
  • Sep 13, 2026
  • Mar 28, 2012
Product Identifiers: Brand: Dynatron • Part #: K985 • UPC: 855700010060 • ASIN: B004HST4BC • Category: Other Computer Fans & Cooling

Frequently Asked Questions

What processor sockets is this CPU cooler compatible with?

This CPU cooler is compatible with Socket H3 LGA-1150, Socket H2 LGA-1155, and Socket H LGA-1156. It supports specific Intel Sandy Bridge Xeon Processors for LGA 1155 and various Intel Core i3, i5, i7, and Xeon 3400 series processors for LGA 1156.

What are the dimensions and material of the heatsink?

The heatsink is made from aluminum with a copper insert. The overall dimensions of the unit are approximately 2.9 inches in height, 4.2 inches in width, and 4.2 inches in depth, with a weight of 1.10 lb.

What is the maximum fan speed and airflow?

The fan operates at a maximum speed of 2500 RPM. At this speed, it provides an airflow of 47 CFM.

What type of fan bearing does this cooler use?

The Dynatron CPU Cooler K985 utilizes a dual ball bearing fan. This bearing type is generally selected for its durability and lifespan.

K985 - Dynatron CPU Cooler K985 3U LGA1155/LGA1156 Aluminum Heatsink/ Fan Retail

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