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Small black laptop CPU cooling fan with copper heatsink and connector cable

SXDOOL

SXDOOL CPU Cooling Fan DELL INSPIRON 17 7778 7779 YJ94J NS85B00-15L14

SKU CH-NPBC-K7JYS

Replacement CPU cooling fan for Dell Inspiron 17 7778 and 7779 laptops, supplied with installation accessories

  • Keeps your Inspiron 17 7778 7779 running cool with a direct-fit CPU fan
  • Restores factory cooling performance using the exact YJ94J NS85B00-15L14 part number
  • Ready to install straight from the box with included screwdriver, removal tool and cleaning brush
  • Brand-new component eliminates wear risk found in used or pulled fans
  • Purpose-built for Dell Inspiron 17 7778 and 7779 models only

Replacement CPU fan for Dell Inspiron 17

This new CPU cooling fan fits Dell Inspiron 17 7778 and 7779 laptops using part numbers YJ94J and NS85B00-15L14. It is intended for owners whose original cooler has become noisy or stopped spinning. The component restores factory cooling performance without modification.

Bundled tools simplify the swap

The package includes one new fan plus a small screwdriver, a removal tool and a cleaning brush. These accessories let you open the chassis, detach the old assembly and clear dust from the heatsink in a single session. No separate tool kit is required to complete the repair.

Exact model match decides fit

Compatibility is limited to the listed Inspiron 17 7778 and 7779 models with the specified part numbers. Builders working on other Dell series, different screen sizes or dissimilar part codes cannot use this fan. Verify the service tag before ordering to avoid a mismatch.

Highlights

  • Keeps your Inspiron 17 7778 7779 running cool with a direct-fit CPU fan
  • Restores factory cooling performance using the exact YJ94J NS85B00-15L14 part number
  • Ready to install straight from the box with included screwdriver, removal tool and cleaning brush
  • Brand-new component eliminates wear risk found in used or pulled fans
  • Purpose-built for Dell Inspiron 17 7778 and 7779 models only

Specifications

No published specifications for this item yet.

Questions about this item

Will the YJ94J NS85B00-15L14 fan need periodic cleaning to maintain airflow?

Yes, the bundled cleaning brush lets you remove dust from the heatsink fins and fan blades every few months to keep cooling performance stable.

Under continuous load, does the NS85B00-15L14 reach its maximum RPM before the CPU throttles?

The fan spins up to its rated speed to move heat away from the processor; thermal throttling depends on the laptop's firmware and overall chassis airflow.

How much audible noise does the YJ94J cooler produce when the Inspiron 17 7778 runs all day?

At typical speeds it runs quietly; under heavy sustained loads the fan becomes noticeable but stays within normal laptop cooling acoustics.

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