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RamCity guarantees 100% that all modules below are compatible with the NEC Express 5800 Series B120a

Part #. CPV • DDR3-1333 / PC3-10600 • CL9 • ECC • Dual Rank • Registered • 1.5V • 36-chip 512Mx4 • more info

Buy new: $245.99 $191.99

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

Buy new: $172.99 $134.99

Part #. D51272J91 • ECC • more info

Buy new: $240.99 $187.99

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

Buy new: $107.99 $83.99

Part #. CON • DDR3-1333 / PC3-10600 • CL9 • ECC • Registered • 1.5V • 18-chip 256Mx4 • more info

Buy new: $114.99 $89.99

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:

WHEN INSTALLING THE UNBUFFERED DIMMS, MODULES MUST BE ORDERED AND INSTALLED IN PAIRS.
WHEN INSTALLING THE REGISTERED DIMMS, MODULES MAY BE ORDERED AND INSTALLED ONE AT A TIME.
DDR3 1333MHz modules automatically clock down to 1066MHz or lower depending on which Intel Xeon processor 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:

Maximum Memory:

Expansion:

CPU/Chipset:

Bus Architecture:

Upgrade Path:

Virtually any configuration up to 64GB can be reached using 1, 2, 4 or 8GB modules.