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A small black square case fan with a four-wire connector

DBTLAP

DBTLAP Foxconn PVB120G12H-P01 J50GH-A00 12V 0.75 4Wire DELL OptiPlex 790 390 990 SFF CPU Fan

SKU CH-1RDF-9SB10

A 12V 0.75A 4-wire case fan tested before shipping for DELL OptiPlex 790 390 990 SFF systems

  • TypeCase Fan
  • Direct replacement for Dell OptiPlex 790 390 990 SFF
  • 12 V 0.75 A 4-wire PWM control for precise cooling
  • Tested before shipping to ensure reliable operation
  • Produced by Forcecon ADDA Sunon or Kipo depending on stock
  • Single fan package ready for immediate installation

Compatible 4-Wire CPU Fan for Dell OptiPlex SFF

This 12 V 0.75 A case fan replaces the Foxconn PVB120G12H-P01 and J50GH-A00 units found in Dell OptiPlex 790, 390 and 990 small form factor systems. It is aimed at technicians and owners repairing a noisy or failed original cooler. Each unit is tested before dispatch to confirm operation. Builders working on full-size towers or non-Dell platforms cannot use this specific assembly.

Four-Pin PWM Control Limits

The 4-wire connector carries power, ground, tachometer signal and PWM duty-cycle input so the motherboard can regulate speed automatically. Voltage is fixed at 12 V and current draw is 0.75 A, so the fan will not run from a 5 V header or a 3-pin voltage-controlled header without losing speed control. The Dell BIOS manages the thermal curve; no third-party software can override the firmware limits on these OptiPlex models.

Direct Swap Installation Notes

Installation consists of unplugging the old fan, removing its mounting screws and fitting the replacement in the same orientation. The shroud clips and screw holes align with the original Foxconn or Forcecon, ADDA, Sunon or Kipo units shipped across production runs. The only common issue is cable routing: the short lead must be tucked clear of the heatsink fins to prevent vibration noise. No adapters or soldering are required.

Highlights

  • Direct replacement for Dell OptiPlex 790 390 990 SFF
  • 12 V 0.75 A 4-wire PWM control for precise cooling
  • Tested before shipping to ensure reliable operation
  • Produced by Forcecon ADDA Sunon or Kipo depending on stock
  • Single fan package ready for immediate installation

Specifications

TypeCase Fan

Questions about this item

Which model numbers does this fan replace for my OptiPlex SFF?

It replaces Foxconn PVB120G12H-P01 and J50GH-A00, also listed as J50GH or 0J50GH, for OptiPlex 790, 390 and 990 small form factor systems.

What does the 12V 0.75 rating mean for cooling my CPU?

The fan draws 12 volts at 0.75 amps, giving roughly 9 watts of power to spin the impeller and move air through the OptiPlex SFF heatsink.

How does the 4-wire connector control fan speed?

The fourth wire carries a PWM signal from the motherboard so the OptiPlex can vary the fan speed automatically based on CPU temperature.

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