IBM 00E0647 12X GX Channel HAC

Core Overview

• Manufacturer: IBM

• Product Type: GX++ 12X Channel Dual-Port DDR (Double Data Rate) Host Channel Adapter (HCA)

• Primary Part Number (FRU): 00E0647

• Base / Alternate Part Number: 00E0646, 00E0644

• CCIN (Customer Card Identification Number): 2BDA

• IBM Feature Code (FC): EJ04 (Commonly referenced as GX++ 12X Channel Attachment)

Port & Expansion Architecture

This adapter is a specialized internal high-speed bus expansion card rather than a typical Ethernet or Fibre Channel network card. It acts as a direct extension of the server’s internal processor processor-to-I/O hub interconnect link:

• Physical Ports: Two (2) high-density 12X InfiniBand-style DDR SDR/DDR hardware channel connection ports.

• Link Speed / Bandwidth: Supports 12X DDR (Double Data Rate) throughput interface metrics, providing high-bandwidth, ultra-low latency cluster/drawer expansion scaling.

• Protocol Target: Connects the system’s internal CPU backplane directly to remote, high-density external enterprise I/O expansion enclosures.

Hardware Compatibility & Enclosure Routing

The 00E0647 module slides into a dedicated internal proprietary GX++ slot located directly on the server’s processor/system backplane board.

• Supported Servers:

  • IBM Power 720 Express: Machine Type-Models (MTM) 8202-E4C and 8202-E4D (POWER7 / POWER7+ configurations)

  • IBM Power 740 Express: Machine Type-Models (MTM) 8205-E6C and 8205-E6D (POWER7 / POWER7+ configurations)

• Downstream Enclosure Infrastructure: Allows the Power 720/740 hosts to dynamically drive external multi-slot PCIe/SAS Expansion drawers using custom 12X loop cabling networks, interfacing natively with:

  • IBM Feature 5802: 12X I/O Drawer PCIe/SFF (Small Form Factor) disk drive chassis.

  • IBM Feature 5877: 12X I/O Expansion Drawer (PCIe slots only).