Table 1. Server specifications (continued)
Specification
Description
Memory
For 1st Generation Intel Xeon Scalable Processor (SP Gen 1):
• Minimum: 8 GB
• Maximum:
– 384 GB using registered DIMMs (RDIMMs)
– 768 GB using load-reduced DIMMs (LRDIMMs)
• Type (depending on the model):
– TruDDR4 2666, single-rank or dual-rank, 8 GB/16 GB/32 GB RDIMMs
– TruDDR4 2666, quad-rank, 64 GB LRDIMMs
• Slots: 12 slots
For 2nd Generation Intel Xeon Scalable Processor (SP Gen 2):
• Minimum: 8 GB
• Maximum: 768 GB
• Type (depending on the model):
– TruDDR4 2666, single-rank or dual-rank, 16 GB/32 GB RDIMMs
– TruDDR4 2933, single-rank or dual-rank, 8 GB/16 GB/32 GB/64 GB RDIMMs
• Slots: 12 slots
For a list of supported memory modules, see:
http://www.lenovo.com/us/en/serverproven/
Operating systems
Supported and certified operating systems:
• Microsoft Windows Server
• VMware ESXi
• Red Hat Enterprise Linux
• SUSE Linux Enterprise Server
For a complete list of operating systems, see:
https://lenovopress.com/osig
For OS deployment instructions, see: “Deploy the operating system” on page 96.
Internal drives
• Up to eight 3.5-inch simple-swap SATA drives
• Up to twelve 3.5-inch hot-swap SAS/SATA drives
• Up to sixteen 2.5-inch hot-swap SAS/SATA drives
• Up to two internal M.2 drives
PCI Express (PCIe) slots
• One PCIe slot on system board
• Three PCIe slots on the riser 1 adapter
• Two PCIe slots on the riser 2 adapter
For detailed information, see “Rear view” on page 22.
6 ThinkSystem SR550 Setup Guide
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