Tech Tips - Lenovo ThinkSystem SD550 V3 System Configuration Manual

Lenovo ThinkSystem firmware is Unified Extensible Firmware Interface (UEFI) compliant. UEFI replaces
BIOS and defines a standard interface between the operating system, platform firmware, and external
devices.
Lenovo ThinkSystem servers are capable of booting UEFI-compliant operating systems, BIOS-based
operating systems, and BIOS-based adapters as well as UEFI-compliant adapters.
Note: The system does not support Disk Operating System (DOS).
• Active Memory
The Active Memory feature improves the reliability of memory through memory mirroring. Memory
mirroring mode replicates and stores data on two pairs of DIMMs within two channels simultaneously. If a
failure occurs, the memory controller switches from the primary pair of memory DIMMs to the backup pair
of DIMMs.
• Large system-memory capacity
The system supports TruDDR5 DIMMs operating at up to 5600 MHz. For more information about the
specific types and maximum amount of memory, see
• Large data-storage capacity
The node supports up to six 2.5-inch hot-swap SAS/SATA/NVMe solid-state drives.
• Lightpath Diagnostics
Lightpath Diagnostics provides LEDs to help diagnose problems. For more information about the
Lightpath Diagnostics, see
• Mobile access to Lenovo Service Information website
The node provides a QR code on the system service label, which is on the node top cover, that you can
scan using a QR code reader and scanner with a mobile device to get quick access to the Lenovo Service
Information website. The Lenovo Service Information website provides additional information for parts
installation, replacement videos, and error codes for system support.
• Active Energy Manager
Lenovo XClarity Energy Manager is a power and temperature management solution for data centers. You
can monitor and manage the power consumption and temperature of Converged, NeXtScale, System x,
and ThinkServer solutions, and improve energy efficiency using Lenovo XClarity Energy Manager.
• ThinkSystem RAID support
The ThinkSystem RAID provides software RAID and hardware RAID support for RAID level 0, 1, 10, 5, 50,
6, 60, 1 Triple, 10 Triple.

Tech Tips

Lenovo continually updates the support website with the latest tips and techniques that you can use to solve
issues that your server might encounter. These Tech Tips (also called retain tips or service bulletins) provide
procedures to work around issues or solve problems related to the operation of your server.
To find the Tech Tips available for your server:
1. Go to http://datacentersupport.lenovo.com
2. Click on How To's from the navigation pane.
3. Click Article Type ➙ Solution from the drop-down menu.
Follow the on-screen instructions to choose the category for the problem that you are having.
"Troubleshooting by system LEDs and diagnostics display" on page
and navigate to the support page for your server.
"Node technical specifications" on page 6.
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Chapter 1 Introduction
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