The UEFI firmware offers several features, including Unified Extensible Firmware Interface (UEFI)
version 2.1 compliance, Active Energy Management (AEM) technology, enhanced reliability, availability,
and serviceability (RAS) capabilities, and basic input/output system (BIOS) compatibility support.
UEFI replaces the BIOS and defines a standard interface between the operating system, platform
firmware, and external devices. The server is capable of booting UEFI-compliant operating systems,
BIOS-based operating systems, and BIOS-based adapters as well as UEFI-compliant adapters.
For more information about UEFI-compliant firmware, go to http://www.ibm.com/support/entry/
portal/docdisplay?lndocid=MIGR-5083207.
Note:
The server does not support DOS.
•
VMware ESXi embedded hypervisor
An optional USB flash device with VMware ESXi embedded hypervisor software is available for purchase.
Hypervisor is virtualization software that enables multiple operating systems to run on a host system at
the same time. Install the USB flash device in the USB embedded hypervisor flash device connectors
on the system board (see “System-board internal connectors” on page 27). See “Using the embedded
hypervisor” on page 117 for additional information.
Reliability, availability, and serviceability
Three important computer design features are reliability, availability, and serviceability (RAS). The RAS
features help to ensure the integrity of the data that is stored in the server, the availability of the server when
you need it, and the ease with which you can diagnose and correct problems.
Your server has the following RAS features:
• 3-year parts and 3-year labor limited warranty (Machine Type 7383)
• 24-hour support center
• Automatic error retry and recovery
• Automatic restart on nonmaskable interrupt (NMI)
• Automatic restart after a power failure
• Backup basic input/output system switching under the control of the Integrated Management Module II
(IMM2)
• Built-in monitoring for fan, power, temperature, voltage, and power-supply redundancy
• Cable-presence detection on most connectors
• Chipkill memory protection
• Single-device data correction (SDDC) for x4 DRAM technology DIMMs (available on 16 GB DIMMs only).
Ensures that data is available on a single x4 DRAM DIMM after a hard failure of up to two DRAM DIMMs.
One x4 DRAM DIMM in each rank is reserved as a space device.
• Diagnostic support for ServeRAID and Ethernet adapters
• Error codes and messages
• Error correcting code (ECC) L3 cache and system memory
• Full Array Memory Mirroring (FAMM) redundancy
• Hot-swap cooling fans with speed-sensing capability
• Hot-swap hard disk drives
• Hot-swap power supplies
• Information and light path diagnostics LED panels
• Integrated Management Module II (IMM2)
• Light path diagnostics LEDs for DIMMs, microprocessors, hard disk drives, solid state drives, power
supplies, and fans
• Memory mirroring and memory sparing support
• Memory error correcting code and parity test
• Memory downsizing (non-mirrored memory). After a restart of the server after the memory controller
detects a non-mirrored uncorrectable error and the memory controller cannot recover operationally, the
IMM2 logs the uncorrectable error and informs POST. POST logically maps out the memory with the
uncorrectable error, and the server restarts with the remaining installed memory.
.
The Lenovo System x3500 M4 Type 7383 server
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Summary of Contents for System x3500 M4
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