IBM 02WN974 POL-ZT Power Card Module LinuxONE Server OEM Genuine

Product Identification

• Brand / Manufacturer: IBM (International Business Machines)

• Part Number (P/N): 02WN974

• Marketing Name: IBM POL-ZT Power Card Module / POL Card

• Product Type: Point-of-Load (POL) Voltage Regulator Power Module

• Condition: Genuine OEM (Original Equipment Manufacturer)

Technical Overview & Architecture

1. Functional Definition

The IBM 02WN974 is a specialized POL (Point-of-Load) Power Card. In enterprise mainframe and high-density computing architectures, a POL module acts as a highly localized, high-efficiency DC-to-DC voltage regulator. It is positioned directly adjacent to high-performance logic units to convert intermediate bus voltages down to the precise, low-voltage, high-current power levels required by advanced processors.

2. System Compatibility

This component is explicitly designed for deployment within the Central Processor Complex (CPC) Drawers of IBM’s mission-critical enterprise infrastructure:

• IBM LinuxONE Rockhopper 4 (Machine Type 3932, Model LA2)

• IBM z16 Single Frame / Rack Mount Bundle (Machine Type 3932, Model A02 / AGZ)

3. Internal Node Placement

Within the 3932 CPC Drawer Assembly, the POL cards operate alongside major computational and power-regulation components. A standard fully configured drawer assembly contains:

• POL Cards (P/N: 02WN974): 7 units per drawer (provides granular power phases to the processor modules).

• VRS Cards (P/N: 02WN508): 6–7 units per drawer (Voltage Regulator Support modules).

• CP Logic Modules: 1–4 units (The core IBM Telum processor modules).

Product Specifications