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Small black laptop CPU cooling fan with four-pin connector

Fans

Fans Laptop CPU Cooling Fan 4-Pin for Lenovo B480 B485 B490 B580 B590

SKU CH-S6EC-VH58Z

4-pin replacement CPU cooling fan compatible with Lenovo B480, B485, B490, B580 and B590 series laptops

  • Direct replacement for Lenovo B480 B485 B490 B580 B590 series
  • 4-pin connector enables precise PWM speed control
  • New condition ensures reliable out-of-the-box performance
  • Compatible with multiple Lenovo B and V series models

Compatible Lenovo Laptop Models

This replacement cooling fan fits Lenovo B480, B480A, B485, B490, M490, M495, E49, B580, B590, V480C and V580C notebooks. It is a direct-fit part for the CPU thermal assembly in these specific chassis. The four-pin connector provides PWM control for automatic speed regulation. Installation restores original cooling performance without modification.

Four-Pin PWM Connector Headroom

The 4-pin interface supports variable speed operation driven by the system firmware. It handles typical office workloads and moderate multitasking thermal loads. Sustained maximum CPU turbo frequencies may exceed the airflow capacity of a single slim turbine. Buyers needing higher static pressure for heavy rendering should verify chassis clearance for upgraded assemblies.

Highlights

  • Direct replacement for Lenovo B480 B485 B490 B580 B590 series
  • 4-pin connector enables precise PWM speed control
  • New condition ensures reliable out-of-the-box performance
  • Compatible with multiple Lenovo B and V series models

Specifications

No published specifications for this item yet.

Questions about this item

Will this 4-pin fan fit my Lenovo B480 without changing the motherboard connector?

The 4-pin connector matches the original Lenovo B480 motherboard header, so the fan plugs in directly.

How can I verify the fan is spinning correctly after I install it in my B580?

Enter the BIOS hardware monitor or use Lenovo Vantage; both show real-time RPM for the CPU fan on B580 models.

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