RamCity.net - Computer Memory Upgrade Specialists for the United States

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Home / IBM/Lenovo Memory / ThinkStation / S20 4105, 4157, 4217-xxx

RamCity guarantees 100% that all modules below are compatible with the IBM/Lenovo ThinkStation S20 4105, 4157, 4217-xxx

	RamCity 24GB ECC Registered 240-pin DIMM Kit (3x 8GB)
	Part #: 3xCPV • DDR3-1333 / PC3-10600 • CL9 • ECC • Dual Rank • Registered • 1.5V • 36-chip 512Mx4 • more info
	Price: $344.99
	24 in Stock

	RamCity 12GB ECC Registered 240-pin DIMM Kit (3x 4GB)
	Part #: 3xCDT • DDR3-1333 / PC3-10600 • CL9 • ECC • Dual Rank • Registered • 1.5V • 36-chip 256Mx4 • more info
	Price: $201.99
	29 in Stock

	Kingston 8GB ECC Registered 240-pin DIMM
	Part #: KTL-TS313/8G • DDR3-1333 / PC3-10600 • ECC • Registered • 1.5V • more info
	Price: $177.99
	Back Order 5 Days

	RamCity 6GB ECC Registered 240-pin DIMM Kit (3x 2GB)
	Part #: 3xBBC • DDR3-1333 / PC3-10600 • CL9 • ECC • Dual Rank • Registered • 1.5V • 18-chip 128Mx8 • more info
	Price: $113.99
	21 in Stock

	Kingston 4GB ECC
	Part #: KTL-TS313S/4G • DDR3-1333 / PC3-10600 • ECC • Single Rank • more info
	Price: $107.99
	Back Order 5 Days

	RamCity 4GB ECC Registered 240-pin DIMM
	Part #: CDT • DDR3-1333 / PC3-10600 • CL9 • ECC • Dual Rank • Registered • 1.5V • 36-chip 256Mx4 • more info
	Price: $80.99
	49 in Stock

	RamCity 4GB ECC 240-pin DIMM
	Part #: COW • DDR3-1333 / PC3-10600 • CL9 • ECC • Dual Rank • w/ Thermal Sensor • 1.5V • 18-chip 256Mx8 • more info
	Price: $56.99
	34 in Stock

	RamCity 4GB ECC Registered 240-pin DIMM
	Part #: CNS • DDR3-1066 / PC3-8500 • CL7 • ECC • Dual Rank • Registered • 1.5V • 36-chip 256Mx4 • more info
	Price: $77.99
	25 in Stock

	Kingston 4GB ECC 240-pin DIMM
	Part #: KTL-TS313E/4G • DDR3-1333 / PC3-10600 • ECC • 1.5V • more info
	Price: $98.99
	Back Order 5 Days

	Kingston 2GB ECC
	Part #: KTL-TS313S/2G • DDR3-1333 / PC3-10600 • ECC • Single Rank • more info
	Price: $80.99
	Back Order 5 Days

	Kingston 2GB ECC
	Part #: KTL-TS313ES/2G • DDR3-1333 / PC3-10600 • ECC • Single Rank • more info
	Price: $81.99
	Back Order 5 Days

	RamCity 2GB ECC 240-pin DIMM
	Part #: CNJ • DDR3-1333 / PC3-10600 • CL9 • ECC • Dual Rank • 1.5V • 18-chip 128Mx8 • more info
	Price: $46.99
	33 in Stock

	RamCity 2GB ECC Registered 240-pin DIMM
	Part #: BBC • DDR3-1333 / PC3-10600 • CL9 • ECC • Registered • 1.5V • 18-chip 128Mx8 • more info
	Price: $54.99
	24 in Stock

	Kingston 2GB ECC 240-pin DIMM
	Part #: KTL-TS313E/2G • DDR3-1333 / PC3-10600 • ECC • 1.5V • more info
	Price: $77.99
	10 in Stock

	RamCity 1GB ECC 240-pin DIMM
	Part #: CPD • DDR3-1333 / PC3-10600 • CL9 • ECC • Single Rank • 1.5V • 9-chip 128Mx8 • more info
	Price: $36.99
	26 in Stock

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Q: Is RamCity brand memory still good quality?: Absolutely! Even though often less expensive, RamCity brand memory is produced to very high specifications, and extensively tested for precise compatibility. Read more.
Q: There are many different memory options for my system - which is the best?: Generally speaking, the larger the upgrade, the greater the potential system performance increase. So, a 2GB upgrade is better than a 1GB upgrade, which is better than a 512MB upgrade. Some systems also handle different memory speeds, such as DDR-333 and DDR-400, or DDR2-533 and DDR2-667. In most cases the modules with the higher number will provide better performance. Check the system specifications comments up on the top right hand side of this page, and read more about the different memory speeds and what they mean.
Q: What do the different memory speeds mean?: Read our FAQ page about the different memory speeds and what they mean.
Q: How much is delivery and how long will it take?: See our Shipping Information Page for details.
Q: Will my system recognise the maximum RAM upgrade?: The maximum memory your OS will recognise (whether it be Windows, Mac OS, or Linux/Unix) depends on the version you are running. 32-bit operating systems (which most people use) will usually see (and utilise) somewhere between 3GB to 3.5GB, depending on the peripheral configuration and motherboard limitations. A 64-bit OS will recognise beyond 4GB. Read more.
Q: How much memory can my system handle?: The maximum memory capacity for your system is shown above on the right hand side of the page. In the future, software applications will make increasing demands on your system resources, particularly the amount of system memory they need to use. Adding the maximum amount of memory will improve the performance of your system now and extend the useful life of your computer in the future.
Q: Do I have to install memory in matching pairs?: In most cases the answer is no, you can install modules one at a time, and you can mix different module sizes in your computer. However, if your computer supports dual-channel memory mode, you should install in identical pairs for optimal performance. Check the comments above on the right hand side for more details.
Q: How do I install the memory upgrade?: Installing memory in your system is usually a simple process. We have static and video installation guides available.
Q: Will installing an upgrade from RamCity affect my warranty?: You can rest assured that adding third party memory to your system does NOT void your warranty. You should take precautions when opening the case of your computer though, so we recommend to always refer to your owners manual or follow one of our online installation guides when installing a memory upgrade. Read more.

Need some help finding the right upgrade?
Let one of our memory experts help you.

Email an Expert for memory upgrade advice
Call (707) 206-7506

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Buy with Confidence.

We guarantee your memory upgrade will be 100% compatible, or return it within 365 days for a full refund.

Need some help installing your upgrade? See our guides and videos.

Specifications

Comments:
Kingston's DDR3-1333 modules automatically clock down to 1066MHz and 800MHz depending on which Intel Xeon model is used and the number of modules installed.

This system supports either Registered ECC or Unbuffered ECC memory.

Mixing Registered ECC and Unbuffered ECC modules is not supported within this system

Standard Memory:
2 GB (Removable) or
4 GB (Removable)

Maximum Memory:
48 GB ECC UDIMMs
96 GB Reg ECC RDIMMs

Expansion:
6 Sockets (2 Banks of 3) per CPU 12 Sockets (4 Banks of 3) using two CPUs

CPU/Chipset:
Intel Xeon Intel 5520

Upgrade Path:
Reg ECC RDIMMs:

Important Shipping Information