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Lenovo ThinkSystem ST558 Memory Upgrades ✓­ Guaranteed Compatible

Make & ModelLenovo ThinkSystem ST558

It's easy to buy Lenovo ThinkSystem ST558 memory here.

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Have a question about your Lenovo ThinkSystem ST558 memory upgrade? Our technical support can help you with any question to ensure you get the best module option for your Lenovo ThinkSystem ST558 system.

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Compatible

Get proven Lenovo ThinkSystem ST558 memory upgrades here. We ship approved, certified and OEM qualified modules to ensure total Lenovo ThinkSystem ST558 system memory reliability.

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Replacement

Nothing is perfect. Sometimes things happen. If your Lenovo ThinkSystem ST558 memory upgrade fails at anytime–we will ship a replacement same day. We support your Lenovo ThinkSystem ST558 memory purchase long after the sale.

Meet the increasing demands of your applications with more Lenovo ThinkSystem ST558 memory.
Expand system performance with an upgrade at lower costs today!

DIMM Type    Speed    Configuration Guide    Lifetime WarrantyLifetime WarrantyLifetime WarrantyLifetime Warranty
Never worry. We support you long after the sale. If any module ever fails–we will replace at zero cost to you!

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Made By

Showing all 39 results

Part # Part Number Made By Capacity Speed Form Factor Price Trend
4X70P98203
4X70P98203
Memory for Lenovo ThinkSystem ST558
Original Replacement 1x 32GB DDR4-2666 RDIMM $ 40 Buy Now
7X77A01304
7X77A01304
Memory for Lenovo ThinkSystem ST558
Original Replacement 1x 32GB DDR4-2666 RDIMM $ 40 Buy Now
01AG618
01AG618
Memory for Lenovo ThinkSystem ST558
Original Replacement 1x 16GB DDR4-2666 RDIMM $ 32 Buy Now
4X70P98202
4X70P98202
Memory for Lenovo ThinkSystem ST558
Original Replacement 1x 16GB DDR4-2666 RDIMM $ 32 Buy Now
7X77A01303
7X77A01303
Memory for Lenovo ThinkSystem ST558
Original Replacement 1x 16GB DDR4-2666 RDIMM $ 32 Buy Now
01AG617
01AG617
Memory for Lenovo ThinkSystem ST558
Original Replacement 1x 8GB DDR4-2666 RDIMM $ 28 Buy Now
4X70P98201
4X70P98201
Memory for Lenovo ThinkSystem ST558
Original Replacement 1x 8GB DDR4-2666 RDIMM $ 28 Buy Now
7X77A01301
7X77A01301
Memory for Lenovo ThinkSystem ST558
Original Replacement 1x 8GB DDR4-2666 RDIMM $ 28 Buy Now
M393A4K40BB2-CTD
M393A4K40BB2‐CTD
Memory for Lenovo ThinkSystem ST558
SAMSUNG 1x 32GB DDR4-2666 RDIMM $ 40 Buy Now
M393A4K40CB2-CTD
M393A4K40CB2‐CTD
Memory for Lenovo ThinkSystem ST558
SAMSUNG 1x 32GB DDR4-2666 RDIMM $ 40 Buy Now
M393A4K40DB2-CTD
M393A4K40DB2‐CTD
Memory for Lenovo ThinkSystem ST558
SAMSUNG 1x 32GB DDR4-2666 RDIMM $ 78 Buy Now
M393A2K40BB2-CTD
M393A2K40BB2‐CTD
Memory for Lenovo ThinkSystem ST558
SAMSUNG 1x 16GB DDR4-2666 RDIMM $ 34 Buy Now
M393A2K40CB2-CTD
M393A2K40CB2‐CTD
Memory for Lenovo ThinkSystem ST558
SAMSUNG 1x 16GB DDR4-2666 RDIMM $ 34 Buy Now
M393A2K40DB2-CTD
M393A2K40DB2‐CTD
Memory for Lenovo ThinkSystem ST558
SAMSUNG 1x 16GB DDR4-2666 RDIMM Request For Quote
M393A2K43BB1-CTD
M393A2K43BB1‐CTD
Memory for Lenovo ThinkSystem ST558
SAMSUNG 1x 16GB DDR4-2666 RDIMM Request For Quote
M393A2K43CB2-CTD
M393A2K43CB2‐CTD
Memory for Lenovo ThinkSystem ST558
SAMSUNG 1x 16GB DDR4-2666 RDIMM $ 38 Buy Now
M393A2K43DB2-CTD
M393A2K43DB2‐CTD
Memory for Lenovo ThinkSystem ST558
SAMSUNG 1x 16GB DDR4-2666 RDIMM $ 38 Buy Now
M393A1K43BB1-CTD
M393A1K43BB1‐CTD
Memory for Lenovo ThinkSystem ST558
SAMSUNG 1x 8GB DDR4-2666 RDIMM $ 28 Buy Now
M386A8K40BM2-CTD
M386A8K40BM2‐CTD
Memory for Lenovo ThinkSystem ST558
SAMSUNG 1x 64GB DDR4-2666 LRDIMM $ 72 Buy Now
M386A8K40CM2-CTD
M386A8K40CM2‐CTD
Memory for Lenovo ThinkSystem ST558
SAMSUNG 1x 64GB DDR4-2666 LRDIMM $ 72 Buy Now
M386A8K40DM2-CTD
M386A8K40DM2‐CTD
Memory for Lenovo ThinkSystem ST558
SAMSUNG 1x 64GB DDR4-2666 LRDIMM $ 72 Buy Now
HMA84GR7AFR4N-VK
HMA84GR7AFR4N‐VK
Memory for Lenovo ThinkSystem ST558
SK HYNIX 1x 32GB DDR4-2666 RDIMM $ 40 Buy Now
HMA84GR7CJR4N-VK
HMA84GR7CJR4N‐VK
Memory for Lenovo ThinkSystem ST558
SK HYNIX 1x 32GB DDR4-2666 RDIMM $ 40 Buy Now
HMA84GR7DJR4N-VK
HMA84GR7DJR4N‐VK
Memory for Lenovo ThinkSystem ST558
SK HYNIX 1x 32GB DDR4-2666 RDIMM $ 40 Buy Now
HMA84GR7JJR4N-VK
HMA84GR7JJR4N‐VK
Memory for Lenovo ThinkSystem ST558
SK HYNIX 1x 32GB DDR4-2666 RDIMM $ 40 Buy Now
HMA82GR7AFR4N-VK
HMA82GR7AFR4N‐VK
Memory for Lenovo ThinkSystem ST558
SK HYNIX 1x 16GB DDR4-2666 RDIMM Request For Quote
HMA82GR7AFR8N-VK
HMA82GR7AFR8N‐VK
Memory for Lenovo ThinkSystem ST558
SK HYNIX 1x 16GB DDR4-2666 RDIMM $ 32 Buy Now
HMA82GR7CJR4N-VK
HMA82GR7CJR4N‐VK
Memory for Lenovo ThinkSystem ST558
SK HYNIX 1x 16GB DDR4-2666 RDIMM $ 34 Buy Now
HMA82GR7CJR8N-VK
HMA82GR7CJR8N‐VK
Memory for Lenovo ThinkSystem ST558
SK HYNIX 1x 16GB DDR4-2666 RDIMM Request For Quote
HMA82GR7JJR8N-VK
HMA82GR7JJR8N‐VK
Memory for Lenovo ThinkSystem ST558
SK HYNIX 1x 16GB DDR4-2666 RDIMM $ 32 Buy Now
HMA81GR7AFR8N-VK
HMA81GR7AFR8N‐VK
Memory for Lenovo ThinkSystem ST558
SK HYNIX 1x 8GB DDR4-2666 RDIMM $ 28 Buy Now
HMA81GR7CJR8N-VK
HMA81GR7CJR8N‐VK
Memory for Lenovo ThinkSystem ST558
SK HYNIX 1x 8GB DDR4-2666 RDIMM $ 28 Buy Now
HMAA8GL7AMR4N-VK
HMAA8GL7AMR4N‐VK
Memory for Lenovo ThinkSystem ST558
SK HYNIX 1x 64GB DDR4-2666 LRDIMM $ 72 Buy Now
HMAA8GL7CPR4N-VK
HMAA8GL7CPR4N‐VK
Memory for Lenovo ThinkSystem ST558
SK HYNIX 1x 64GB DDR4-2666 LRDIMM $ 72 Buy Now
MTA36ASF4G72PZ-2G6
MTA36ASF4G72PZ‐2G6
Memory for Lenovo ThinkSystem ST558
MICRON 1x 32GB DDR4-2666 RDIMM $ 44 Buy Now
MTA18ASF2G72PDZ-2G6
MTA18ASF2G72PDZ‐2G6
Memory for Lenovo ThinkSystem ST558
MICRON 1x 16GB DDR4-2666 RDIMM Request For Quote
MTA18ASF2G72PZ-2G6
MTA18ASF2G72PZ‐2G6
Memory for Lenovo ThinkSystem ST558
MICRON 1x 16GB DDR4-2666 RDIMM $ 34 Buy Now
MTA9ASF1G72PZ-2G6
MTA9ASF1G72PZ‐2G6
Memory for Lenovo ThinkSystem ST558
MICRON 1x 8GB DDR4-2666 RDIMM Request For Quote
MTA72ASS8G72LZ-2G6
MTA72ASS8G72LZ‐2G6
Memory for Lenovo ThinkSystem ST558
MICRON 1x 64GB DDR4-2666 LRDIMM $ 72 Buy Now

Learn more about Lenovo ThinkSystem ST558 memory

What Lenovo ThinkSystem ST558 DIMM type is supported?

LRDIMM and RDIMM

Why are there various DIMM types supported?

Factory configured ST558 systems often have smaller, less expensive modules. As more memory is required different density and technologies are needed. DIMM type mixing is never recommended.

What is a registered memory module?

Registered DIMM memory modules have a register component between the DRAM modules and the motherboard memory controller. When manufactured as a dual in-line memory module (DIMM), a registered memory module is called an RDIMM.

What is a load reduced memory module?

Load reduced memory module technology uses a distributed data buffer to improve bandwidth efficiencies when scaling to higher capacities and speed on enterprise server systems. All LRDIMMs are registered but not all RDIMMs are LRDIMMs. LRDIMM or load-reduced DIMMs are (used in enterprise servers) support highest density modules and contain a memory buffer (MB) component usually made by IDT or Montage. The memory buffer minimizes the load on the server memory bus. LRDIMMs are commonly used to maximize Lenovo ThinkSystem ST558.

What Lenovo ThinkSystem ST558 memory speed is supported?

DDR4-2666

Why may there be various speeds of Lenovo ThinkSystem ST558 memory?

Some servers often have various configurations and versions. If you are unsure what you need, please refer to your ST558 manual or data sheet. If you need tech support, please contact us.

General DIMM population guideline for Lenovo ThinkSystem ST558 upgrade to consider.

Some may or may not apply.

  • Do not mix DIMM LRDIMM and RDIMM types.
  • Install DIMMs starting furthest from the processor.
  • Do not install DIMMs if the corresponding processor is not installed.
  • If only one processor is installed in a two CPU system, only half of the DIMM slots are available.
  • To maximize performance, balance the total memory capacity between all installed processors.
  • It is not required, but it is recommended to load the channels similarly if possible.

Why are there so many Lenovo ThinkSystem ST558 upgrade options?

IT buyers come from all walks of life. Some purchase by OEM part number. Some purchase by original module part number. Our goal is to give you confidence when purchasing Lenovo ThinkSystem ST558 upgrades. All modules listed are qualified to work in your Lenovo ThinkSystem ST558.


 

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