The Integrated Management Module II (IMM2) service processor is the second generation of the Integrated Management Module (IMM) service processor.

The Integrated Management Module II (IMM2) service processor is the second generation of the Integrated Management Module (IMM) service processor that consolidates the service processor functionality, Super I/O, video controller, and remote presence capabilities into a single chip on the server system board. As was the case with IMM, IMM2 offers several improvements over the combined functionality of the baseboard management controller (BMC) and the Remote Supervisor Adapter II including these features:


System x Server Firmware is the implementation of Unified Extensible Firmware Interface (UEFI). It replaces the basic input/output system (BIOS) in System x servers and BladeCenter blade servers. The BIOS was the standard firmware code that controlled basic hardware operations, such as interactions with diskette drives, hard disk drives, and the keyboard. System x Server Firmware offers several features that BIOS does not, including UEFI 2.3 compliance, iSCSI compatibility, Active Energy Manager technology, and enhanced reliability and service capabilities. The Setup utility provides server information, server setup, customization compatibility, and establishes the boot device order.

  • System x Server Firmware is often called server firmware, and occasionally called UEFI, in this document.
  • System x Server Firmware is fully compatible with non-UEFI operating systems.
  • For more information about using System x Server Firmware, see the documentation that came with your server.

This document explains how to use the functions of the IMM2 in a Lenovo® server. The IMM2 works with System x Server Firmware to provide systems-management capability for System x, BladeCenter, and a Flex System.

To check for firmware updates, complete the following steps.

Note: The first time you access the Support Portal, you must choose the product category, product family, and model numbers for your storage subsystems. The next time you access the Support Portal, the products you selected initially are preloaded by the website, and only the links for your products are displayed. To change or add to your product list, click the Manage my product lists link.

Changes are made periodically to the website. Procedures for locating firmware and documentation might vary slightly from what is described in this document.

  1. Go to the Lenovo Support Portal.
  2. Under Choose your products, select Browse for a product and expand Hardware.
  3. Depending on your type of server, click Systems > System x or Systems > BladeCenter, and check the box for your server or servers.
  4. Under Choose your task, click Downloads.
  5. Under See your results, click View your page.
  6. In the Flashes & alerts box, click the link for the applicable download or click More results to see additional links.