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Green printed circuit board 240 pin DDR3 RDIMM module no heat spreader

OWC

OWC 1R6D31R408GB 8GB DDR3 1600 CL11 ECC Registered RDIMM memory upgrade

SKU CH-ZCWT-ZNVFP

8 GB DDR3-1600 ECC registered RDIMM for Supermicro X9 server and workstation boards

  • Total capacity8 GB
  • Rated speedDDR3 1600 (PC3 12800)
  • CAS latencyCL11
  • Rated voltage1.5 V
  • Buffer typeRegistered
  • Memory rank1Rx4

Capacity 8GB

  • ECC registered design prevents data corruption in servers
  • 1600 MHz DDR3 speed matches PC3-12800 spec for responsive workloads
  • CL11 latency at 1.5 V keeps power draw low
  • Single 8 GB 1Rx4 module simplifies capacity expansion
  • Validated for Supermicro X9DAE, X9DAi, X9DBS, X9SRA, X9SRE motherboards

Server ECC RDIMM upgrade

This 8 GB DDR3 1600 module is built for Supermicro X9DAE, X9DAi, X9DBS, X9SRA and X9SRE motherboards. It targets administrators who need registered ECC memory for workstation, server, NAS or router platforms.

Capacity and headroom

A single 8 GB rank adds meaningful capacity to multi-slot server boards running memory-intensive workloads. The registered buffer and ECC protect data integrity, but the DDR3 1600 interface limits throughput on modern compute tasks.

Registered ECC constraint

This module uses 1.5 V registered ECC DDR3 technology and will not work in standard desktop systems or alongside unbuffered DIMMs. Buyers must verify their platform requires registered ECC memory before ordering.

How it compares

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

Price $22.99
Cheaper than about 89% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $2.87 per GB
Cheaper than about 90% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameOWC
Part number1R6D31R408 GB
Total capacity8 GB
Product type240-Pin DDR3 ECC RDIMM
Performance
Rated speedDDR3 1600 (PC3 12800)
Memory
CAS latencyCL11
ECC supportYes
Buffer typeRegistered
Memory rank1Rx4
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsSupermicro Motherboard X9DAE Series
Supermicro Motherboard X9DAi Series
Supermicro Motherboard X9DBS Series
Supermicro Motherboard X9SRA Series
Supermicro Motherboard X9SRE Series

Other versions of this model

5 more in the same range

Questions about this item

Will this 240-pin DDR3 1600 ECC Registered RDIMM work alongside the existing unbuffered modules in my Supermicro X9DAE server?

No, the registered design cannot be mixed with unbuffered memory; all slots must use registered ECC modules for the system to operate correctly.

How can I verify the 8GB CL11 module is running at the correct 1600 MHz speed after installation?

Check the BIOS memory information or use a tool such as CPU-Z to confirm the module reports DDR3-1600 (PC3-12800) at CL11 latency.

Does the single 1Rx4 1.5 V stick ship with any additional parts or do I need to buy a heatsink separately?

The box contains only the bare 240-pin RDIMM; no heatspreader, cables or extra hardware are included or required for standard server use.

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