DELL OptiPlex 3040 7040 CPU Cooling Fan BUC1612VD-00 VR79W laptop replacement part

Dell OptiPlex 3040 7040 CPU Cooling Fan

This genuine Dell OEM replacement fan is built for the OptiPlex 3040 and 7040 desktop systems. It uses a brushless motor and a 4-pin PWM connector to regulate speed based on processor temperature. The unit runs at 12VDC and draws 1.10A to keep the CPU within safe thermal limits. It fits directly into the original mounting points without modification.

Replaces a failed or noisy stock cooler

When the original fan develops bearing noise, fails to spin, or cannot maintain low temperatures under load, this part restores the factory cooling profile. The brushless design reduces wear compared to sleeve-bearing alternatives, extending service life. The upgrade is worth it when system throttling or unexpected shutdowns point to insufficient airflow. It returns the workstation to its intended acoustic and thermal behaviour.

Limited to OptiPlex 3040 and 7040 chassis

The 4-pin PWM interface and specific mounting layout prevent use in other Dell models or third-party cases. Dimensions of 3.5 x 3.5 x 1.0 inches and a weight of .30 lbs match the original housing exactly. Builders needing a cooler for a different socket, form factor, or higher TDP must select a different part. This fan cannot be adapted to non-OptiPlex boards.