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RamCity guarantees 100% that all modules below are compatible with the IBM/Lenovo ThinkStation C20

Kingston 8GB ECC Registered 240-pin DIMM

Part #. KTL-TS313/8G • DDR3-1333 / PC3-10600 • ECC • Registered • 1.5V • more info

Buy new: $341.99 $266.99

Ships in 7 Days Free Shipping Guaranteed Compatible

Kingston 4GB ECC Registered 240-pin DIMM

Part #. KTL-TS313/4G • DDR3-1333 / PC3-10600 • ECC • Registered • 1.5V • more info

Buy new: $240.99 $187.99

Ships in 7 Days Free Shipping Guaranteed Compatible

RamCity 4GB CL9 ECC 240-pin DIMM

Part #. COW • DDR3-1333 / PC3-10600 • CL9 • ECC • Dual Rank • w/ Thermal Sensor • 1.5V • 18-chip 256Mx8 • more info

Buy new: $126.99 $98.99

50 in Stock Free Shipping Guaranteed Compatible

RamCity 4GB CL9 ECC Registered 240-pin DIMM

Part #. CDT • DDR3-1333 / PC3-10600 • CL9 • ECC • Dual Rank • Registered • 1.5V • 36-chip 256Mx4 • more info

Buy new: $172.99 $134.99

15 in Stock Free Shipping Guaranteed Compatible

Kingston 4GB ECC 240-pin DIMM

Part #. KTL-TS313E/4G • DDR3-1333 / PC3-10600 • ECC • 1.5V • more info

Buy new: $136.99 $106.99

9 in Stock Free Shipping Guaranteed Compatible

Kingston 2GB ECC Registered 240-pin DIMM

Part #. KTL-TS313/2G • DDR3-1333 / PC3-10600 • ECC • Registered • 1.5V • more info

Buy new: $122.99 $95.99

Ships in 7 Days Free Shipping Guaranteed Compatible

RamCity 2GB CL9 ECC 240-pin DIMM

Part #. CNJ • DDR3-1333 / PC3-10600 • CL9 • ECC • Dual Rank • 1.5V • 18-chip 128Mx8 • more info

Buy new: $105.99 $82.99

9 in Stock Free Shipping Guaranteed Compatible

RamCity 2GB CL9 ECC Registered 240-pin DIMM

Part #. BBC • DDR3-1333 / PC3-10600 • CL9 • ECC • Registered • 1.5V • 18-chip 128Mx8 • more info

Buy new: $107.99 $83.99

1 in Stock Free Shipping Guaranteed Compatible

Kingston 2GB ECC 240-pin DIMM

Part #. KTL-TS313E/2G • DDR3-1333 / PC3-10600 • ECC • 1.5V • more info

Buy new: $119.99 $93.99

Ships in 7 Days Free Shipping Guaranteed Compatible

We guarantee your memory upgrade will be 100% compatible, or return it within 1 Whole Year for a full refund.

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

System Specifications

Comments:

DDR3-1333 modules automatically clock down to 1066MHz and 800MHz depending on which Intel Xeon model is used.
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:

2GB (Removable) or
4GB (Removable)

Maximum Memory:

24GB ECC UDIMMs
48GB Reg ECC RDIMMs

Expansion:

3 Sockets (1 bank of 3) per CPU 6 Sockets (2 banks of 3) using two CPUs

CPU/Chipset:

Intel Xeon Intel 5520

Bus Architecture:

PCI; PCI Express; SSD - SATA 2.5-inch

Upgrade Path:

Virtually any configuration up to 48GB can be reached using any combination of 2, 4, and 8GB modules.

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RamCity guarantees 100% that all modules below are compatible with the IBM/Lenovo ThinkStation C20