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Small black laptop CPU cooling fan with four-wire connector

DBTLAP

DBTLAP CPU cooling fan for HP Probook 640 G2 645 G2 840662-001 4-wire 4-pin

SKU CH-0EDX-TTY58

Replacement CPU cooling fan for HP ProBook 640 G2 and 645 G2 laptops, four-wire four-pin connector, part 840662-001, tested before shipping

  • Accessory TypeCooler
  • Direct replacement for HP Probook 640 G2 and 645 G2 models
  • Four-wire, four-pin connector matches original motherboard header
  • Genuine DBTLAP cooler tested before shipping
  • Exact part number 840662-001 ensures 100% compatibility
  • Single fan unit ready for immediate installation

HP Probook 640 G2 and 645 G2 CPU fan

This replacement cooling fan is built for HP Probook 640 G2 and 645 G2 laptops. It restores active cooling when the original unit fails or becomes noisy. The part matches OEM part number 840662-001 and uses a 4-wire 4-pin connector. It is intended for owners of those specific models who need a direct swap.

4-wire 4-pin connector and tested reliability

The fan connects via a standard 4-wire 4-pin header, allowing the motherboard to control speed precisely. Each unit is tested before shipping to confirm operation. The package includes only the fan itself, so existing screws and thermal pads must be reused. Build quality follows the original design for a secure fit inside the chassis.

Verify model and part number before ordering

Confirm that your laptop is a Probook 640 G2 or 645 G2 and compare the old fan to the product photos. The part number 840662-001 must match exactly; other Probook generations use different coolers. If you are unsure, provide your model number for verification. This fan will not fit laptops outside the two listed series.

Highlights

  • Direct replacement for HP Probook 640 G2 and 645 G2 models
  • Four-wire, four-pin connector matches original motherboard header
  • Genuine DBTLAP cooler tested before shipping
  • Exact part number 840662-001 ensures 100% compatibility
  • Single fan unit ready for immediate installation

Specifications

Accessory TypeCooler

Questions about this item

Does the 4-pin connector support PWM speed control on the ProBook 640 G2?

The 4-wire 4-pin connector provides PWM control so the ProBook 640 G2 can regulate fan speed automatically.

Will this fan fit the heatsink mounting holes on an HP ProBook 645 G2?

It is built for the HP ProBook 645 G2 and matches the original mounting pattern and screw positions.

What is the correct installation step for the 4-pin cable on the 840662-001 fan?

Align the keyed 4-pin plug with the motherboard header and press straight down; forcing it sideways bends the pins.

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