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Small black CPU cooling fan with wire connector and mounting tabs

DBTLAP

DBTLAP CPU Cooling Fan 0MHV25 for Dell Optiplex 3240 3440 7440 AIO BAZB1125R2U

SKU CH-D5BW-11R1E

Replacement CPU cooling fan compatible with Dell OptiPlex 3240, 3440 and 7440 all-in-one desktops

  • Accessory categoryCooler
  • Direct replacement for Dell Optiplex 3240 3440 7440 AIO models
  • Verified match to part number 0MHV25 BAZB1125R2U
  • Single fan unit tested before dispatch
  • Real product photos confirm exact fit
  • Compatibility check available via model number

Replacement CPU Fan for Dell Optiplex AIO

This new DBTLAP cooling fan replaces the original 0MHV25 unit in Dell Optiplex 3240, 3440 and 7440 all-in-one desktops. It arrives as a single tested fan without additional mounting hardware. Buyers should compare the product photos with their existing cooler to confirm the match before ordering.

Upgrading from a failed or noisy OEM cooler

The fan serves as a direct swap when the factory cooler has stopped spinning or developed excessive noise. The jump is worth it when the system throttles or shuts down under load because the original fan no longer moves enough air. It is not a performance upgrade for systems that already cool correctly.

Limited to the listed Optiplex AIO models

Compatibility is restricted to the three Optiplex all-in-one models named in the part data. The cooler will not fit tower, small-form-factor or micro variants of the same series, nor any other Dell lineup. Buyers who need a cooler for a different chassis or a dual-fan configuration cannot use this part.

How it compares

Measured against everything we stock in Laptop Cooling Stands & Fans, at today’s prices. Recalculated every night.

Price $12.99
Cheaper than about 77% of the 6,190 comparable items (median $20.99).

Specifications

Product
Accessory categoryCooler

Questions about this item

Will the 0MHV25 fan fit inside my Dell Optiplex 3240 AIO chassis?

The 0MHV25 is built to the original Dell specification for the Optiplex 3240, 3440 and 7440 AIO models; match the part number BAZB1125R2U and compare the photos to your existing fan before ordering.

What is the common mistake when installing the 0MHV25 fan in a Dell Optiplex AIO?

Many installers forget to reconnect the 4‑pin power cable and to route the wire clear of the heatsink fins; the fan will spin but the system will report a fan error if the connector is not fully seated.

How often should I replace the 0MHV25 cooling fan in my Optiplex AIO?

Replace the fan when bearing noise appears or when the system logs a fan‑speed warning; each unit is tested before shipping, so a new 0MHV25 typically runs for years under normal office loads.

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