Description
Woodward 5466-409 | MicroNet Pentium CPU Module
Product Introduction
Replacing a legacy controller CPU is not a routine board swap. The processor may be tied to a specific operating system, application image, and installed control configuration. A physically compatible module that lacks the required software or configuration may not restore the system.
The Woodward 5466-409 MicroNet Pentium CPU Module is an older MicroNet Digital Control processor built around a 233 MHz Pentium CPU, 64 MB of RAM, and Windows NT 4.0. Woodward’s MicroNet documentation identifies this exact part number and marks it inactive. It is therefore best approached as a legacy-system maintenance spare, with compatibility and software verification completed before purchase.
For maintenance teams supporting installed MicroNet equipment, matching the 5466-409 part number is only the first step. Confirm the installed CPU, system architecture, application software, and recovery requirements before treating a surplus unit as a ready-to-install replacement.

5466-409
Key Technical Specifications
- Manufacturer: Woodward
- Part Number: 5466-409
- Product Series: MicroNet Digital Control
- Module Type: Pentium CPU module
- Processor Speed: 233 MHz
- Installed RAM: 64 MB
- Operating System: Windows NT 4.0
- System Architecture: Simplex application
- Primary Role: MicroNet control-system processing
- Lifecycle Status: Inactive, according to Woodward documentation
- Ethernet / Serial Interfaces: Verify exact port configuration on the unit and against the applicable manual.
- Application Software: Confirm compatibility with the installed MicroNet project and software revision.
- Chassis Compatibility: Verify against the installed MicroNet rack and controller configuration.
- Power Requirements: Confirm from the applicable Woodward documentation.
- Operating Temperature: Confirm from the applicable hardware documentation.
- Dimensions and Weight: Not independently verified for this exact part number.
Technical note: The processor, RAM, operating system, and inactive status are supported by Woodward’s MicroNet documentation. Do not infer additional interface or environmental specifications from unrelated MicroNet CPU variants.
Global Sourcing & Live-Test SOP
The following is a recommended qualification workflow. It does not imply that the specific unit being sold has been tested or refurbished.
Incoming Verification
- Confirm the full Woodward 5466-409 part number.
- Record the serial number and hardware revision, if present.
- Photograph the module label, connectors, and visible PCB markings.
- Inspect for corrosion, damaged connectors, contamination, and signs of unauthorized repair.
- Compare the unit with the installed CPU and approved site references.
Authenticity and Traceability
- Record supplier information, purchase order, and received condition.
- Check consistency between module markings and supplied documentation.
- Request traceability, service history, or prior application details when available.
- Flag discrepancies in part number or revision for engineering review.
Functional Qualification
- Test only in an approved MicroNet-compatible setup.
- Verify CPU startup and diagnostic status using applicable procedures.
- Confirm the operating system and application environment, where accessible.
- Verify that the intended MicroNet configuration recognizes the module.
- Record test equipment, software versions, test results, and observed faults.
Extended Run and Diagnostics
- Perform an extended operating run when supported by the test setup and applicable procedure.
- Record test duration, diagnostics, and environmental conditions.
- A 24-hour run may be included in the qualification plan, but must not be claimed as completed without supporting records.
Configuration and Packaging
- Record accessible operating-system, application, and configuration details.
- Document any differences from the removed CPU module.
- Package in ESD-safe material with suitable mechanical protection.
- Include test or inspection reports only when those activities have actually been completed.
Field Engineer’s Pitfall Guide
- ❗ Do not confuse 5466-409 with 5466-407. Woodward identifies 5466-407 as a 233 MHz Pentium CPU without an operating system. The 5466-409 is specified with Windows NT 4.0. Confirm the required software configuration before substitution.
- ❗ Do not overlook application-image compatibility. A CPU that starts successfully may still lack the correct MicroNet project, configuration, or software environment. Verify recovery and loading requirements before installation.
- ❗ Do not assume hot-swap capability. Follow the applicable Woodward MicroNet maintenance procedure and site shutdown requirements before removing or installing the 5466-409.
Intent-Driven FAQ
Q1: What is the Woodward 5466-409?
It is a MicroNet Digital Control Pentium CPU module with a 233 MHz processor, 64 MB RAM, and Windows NT 4.0.
Q2: Which control platform uses the 5466-409?
It belongs to Woodward’s MicroNet Digital Control family and is associated with simplex applications. Confirm the exact installed system configuration before ordering.
Q3: Is the 5466-409 still active?
Woodward’s MicroNet documentation lists the part as inactive. Confirm current service and replacement options through Woodward’s Product History Lookup.
Q4: Can the 5466-409 replace a 5466-407?
Do not assume direct interchangeability. The 5466-407 is listed without an operating system, while the 5466-409 is specified with Windows NT 4.0. Confirm application and system compatibility before substitution.
Q5: Does the 5466-409 include the original MicroNet application software?
The part number alone does not establish that software, licenses, or a site-specific application image are included. Confirm the actual unit’s software state and supplied contents with the seller.
Q6: Is the 5466-409 hot-swappable?
Do not assume so. Follow the applicable Woodward maintenance procedure for the installed MicroNet configuration.
Q7: Does the part number guarantee a tested unit or warranty?
No. Condition, testing, warranty coverage, and included accessories must be confirmed from the seller’s specific offer and supporting documentation.


