Intel LGA 775 CPU Cooler Heatsink Fan C25704-002 Nidec 4-Pin PWM Socket

Intel LGA 775 CPU Cooler Heatsink Fan C25704-002 Nidec 4-Pin PWM Socket

This is a genuine Intel stock CPU heatsink and fan assembly for Socket LGA 775 processors, part number C25704-002, manufactured by Nidec Corp. It combines an aluminum fin heatsink with a copper base contact plate and a top-mounted fan, all retained by Intel's standard push-pin clip system for tool-free installation into LGA 775 motherboards.

Specifications & What's Included

• Part Number: C25704-002
• Fan Manufacturer: Nidec Corp., model F09A-12B1S1
• Compatible Socket: Intel LGA 775
• Fan Connector: 4-pin PWM (white housing)
• Fan Voltage: DC 12V, 0.42A
• Heatsink Construction: Aluminum radial fins with copper base contact plate
• Mounting: Intel push-pin retention clips (4 clips, tool-free install)
• Included: Heatsink/fan assembly only

Applications

The Intel LGA 775 socket was Intel's primary desktop platform from 2004 through approximately 2012, supporting processors including the Pentium 4, Pentium D, Celeron D, Core 2 Duo, Core 2 Quad, and Core 2 Extreme lines. Stock Intel coolers like this one shipped bundled with boxed retail processors and are designed to handle the full thermal design power (TDP) of supported LGA 775 CPUs within a standard desktop tower or mid-tower case. The 4-pin PWM connector allows the motherboard to modulate fan speed based on CPU temperature, reducing noise at idle. These coolers remain a practical and readily available replacement option for anyone maintaining, repairing, or building a system on the LGA 775 platform — a generation of hardware that still sees active use in light-duty computing, legacy software environments, and budget builds.