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Black CPU cooling fan for Dell Latitude E5400 E5500

DELL

DELL MCF-W-12BM05 CPU Cooling Fan Latitude E5400 E5500 C946C

SKU CH-45NV-FM1QA MPN MCF-W-12BM05

Replaces the CPU cooler in Latitude E5400 and E5500 laptops to restore proper processor temperatures

  • Compatible ManufacturerFor Dell
  • Compatible ModelsFor DELL Latitude E5400 E5500
  • ColorBlack
  • OEM Dell fan keeps Latitude E5400 and E5500 CPUs cool
  • Efficient heat dissipation prevents thermal throttling during workloads
  • Direct-fit design matches original C946C mounting points exactly
  • Quiet, stable operation supports reliable daily laptop use
  • Genuine part number 23.10231.021 simplifies professional repair ordering

Compatible Dell Latitude Models

This CPU cooling fan is an OEM replacement designed for Dell Latitude E5400 and E5500 laptops. It matches the original part number C946C and fits directly into the thermal assembly of those models. Professional repair technicians and DIY users can install it without modification.

Practical Limits of Direct-Fit Replacement

The fan only works with the two Latitude models listed above and will not fit other Dell series or third-party laptops. Its connector, mounting points and airflow profile are fixed to the original chassis design. Buyers who need a cooler for a different motherboard layout or a higher-wattage processor cannot use this part.

Deciding Specification — Part Number C946C

The part number C946C is the single identifier that confirms compatibility with the target Latitude models. Cross-reference this code against your service manual or the label on the original fan before ordering. If the numbers do not match, the fan will not install correctly.

Highlights

  • OEM Dell fan keeps Latitude E5400 and E5500 CPUs cool
  • Efficient heat dissipation prevents thermal throttling during workloads
  • Direct-fit design matches original C946C mounting points exactly
  • Quiet, stable operation supports reliable daily laptop use
  • Genuine part number 23.10231.021 simplifies professional repair ordering

Specifications

BrandDell
ModelLatitude E5400 E5500
Part NumberC946C
Compatible ManufacturerFor Dell
Compatible ModelsFor DELL Latitude E5400 E5500
ColorBlack

Questions about this item

How do I know this fan fits my specific Latitude model?

The part numbers C946C, 0C946C, CN-C946C and 23.10231.021 confirm compatibility with Latitude E5400 and E5500 systems.

Will this replacement restore normal processor temperatures under load?

Yes, the OEM design delivers the original airflow and heat dissipation needed to prevent thermal throttling on the supported Latitude models.

What connector standard does the MCF-W-12BM05 use for the motherboard?

It uses the proprietary Dell fan header fitted to Latitude E5400 and E5500 boards for direct-fit installation.

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