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Three green DDR3 DIMMs with gold contacts, no heat spreaders

Computer Memory Solutions

Computer Memory Solutions 12GB (3x4GB) DDR3 1333 ECC Registered 240-Pin Kit - C20

SKU CH-K14Q-T2N75

12 GB ECC registered DDR3 kit (3 × 4 GB, 1333 MHz, CL9, 1.5 V) validated for ASUS Z8NA‑D6 and Z8NA‑D6C server boards

  • Total capacity12 GB (3 × 4 GB)
  • Rated speedDDR3 1333 (PC3 10600)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL9
  • Memory timings9-9-9
  • Rated voltage1.5 V
  • Guaranteed compatibility with Asus Z8 server boards
  • 12GB triple-channel kit for balanced capacity
  • ECC registered design protects data integrity
  • DDR3 1333 speed matches supported Xeon processors
  • 5V standard voltage for stable operation

Server ECC Registered Kit

This 12GB kit contains three 4GB DDR3 1333 registered ECC modules built for Asus Z8NA-D6 and Z8NA-D6C server boards. The 240-pin DIMMs run at 1.5V with CL9 9-9-9 timing and use 2Rx4 major-brand chips without heat spreaders. It targets administrators upgrading dual-socket Xeon 5500-series platforms that require registered memory.

Capacity And Speed Limits

The board accepts up to 96GB with registered DIMMs across six total sockets, three per CPU. DDR3 1333 operates only with one DIMM per channel on Xeon X5550 or higher processors; adding a second DIMM per channel drops the bus to 1066MHz, and a third forces 800MHz. Quad-rank modules cannot run at 1333MHz on the 5500 series, and the system will not support more than two quad-rank DIMMs per channel.

Build Integration

Mixing registered and unbuffered ECC is not supported, so all slots must use registered modules like this kit. The three-stick package suits a single-CPU configuration or one DIMM per channel on a dual-CPU board to retain 1333MHz speed. Systems with Xeon E5520 or E5506 processors will clock the memory down to 1066MHz or 800MHz respectively regardless of module rating.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $30.99
Cheaper than about 85% of the 21,161 comparable items (median $397.99).
Total capacity 12 GB (3 × 4 GB)
Lower than about 75% of the 20,941 comparable items (median 32 GB).
Price per GB $2.58 per GB
Cheaper than about 91% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM5127210600ECCR2R4H
Total capacity12 GB (3 × 4 GB)
Product type240-Pin DDR3 SDRAM
Performance
Rated speedDDR3 1333 (PC3 10600)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL9
Memory timings9-9-9
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsAsus Z8 Server Board Z8Na-D6, Z8Na-D6C
In the box
Included items3 Memory RAM Sticks

Questions about this item

Will these 240-pin DDR3 1333 registered modules run at 1333 MHz alongside the existing Xeon 5500 series processors in my Z8Na-D6?

1333 MHz is supported with one DIMM per channel using Xeon X55xx series; with two DIMMs per channel the speed drops to 800 MHz, and quad-rank modules do not support 1333 MHz on Xeon 5500 series.

How can I verify the kit is operating at the correct 1333 MHz speed and registered ECC mode after installation?

Enter the BIOS or use a system-information utility to confirm the memory reports 1333 MHz, registered ECC, and the full 12 GB capacity across the three modules.

Does the package include only the three 4 GB sticks, or are any brackets, cables or thermal pads supplied?

The package contains the three 4 GB memory modules only; no brackets, cables or thermal pads are included.

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