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Green 240-pin DDR3 DIMM with black memory chips and gold contacts

SAMSUNG

SAMSUNG M393B1G70QH0-YK0 8GB DDR3 1066 CL11 ECC Registered

SKU CH-0201-H1HNG

An 8 GB DDR3 registered ECC DIMM running at 1066 MHz with CL11 latency for server workloads

  • Total capacity8 GB
  • Rated speedDDR3 1066 (PC3 8500)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL11
  • Rated voltage1.35 V
  • Buffer typeRegistered
  • ECC protection prevents data corruption with built-in error correction
  • Registered signal processing improves stability in multi-module server configurations
  • Single-rank 1Rx4 organisation allows higher density per channel
  • Low 1.35 V operation reduces power draw and heat output
  • 240-pin DDR3 DIMM form factor fits standard server memory slots

Samsung 8 GB DDR3 Registered ECC

This 8 GB DDR3 module operates at 1066 MHz with a CAS latency of CL11. It uses a 240-pin DIMM form factor and includes error-correcting code with registered signal processing. The single-rank 1Rx4 design runs at 1.35 V low voltage or 1.50 V standard voltage. It is built for PC and server platforms that require registered memory.

Sustained load stability

Registered buffering reduces electrical load on the memory controller during continuous operation. ECC detects and corrects single-bit errors that can accumulate under long-running workloads. The low-voltage option lowers power draw and heat output when the system runs for extended periods. These traits keep data integrity consistent in always-on environments.

Upgrade from unbuffered non-ECC

This module replaces standard unbuffered DDR3 DIMMs when the platform requires registered memory with error correction. The jump is worth it for servers or workstations that must prevent silent data corruption. It is not for desktop boards that only accept unbuffered non-ECC modules. Buyers needing higher density per slot should verify maximum supported capacity per DIMM.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $15.99
Cheaper than about 97% of the 6,523 comparable items (median $188.99).
Total capacity 8 GB
Lower than about 80% of the 6,064 comparable items (median 32 GB).
Price per GB $2.00 per GB
Cheaper than about 93% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameSAMSUNG
Model nameM393B1G70QH0-YK0
Total capacity8 GB
Product type240-Pin DDR3 SDRAM
Performance
Rated speedDDR3 1066 (PC3 8500)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL11
ECC supportYes
Buffer typeRegistered
Memory rank1Rx4
Power
Rated voltage1.35 V

Questions about this item

How much power does the 1.35 V DDR3 1066 module draw when running continuously in a server?

The module operates at 1.35 V, lower than standard 1.50 V DDR3, reducing power draw and heat output during all-day operation in registered ECC configurations.

What motherboard slot and chipset support are required for this 240-pin registered ECC DIMM?

It needs a 240-pin DDR3 slot with registered ECC support; the single-rank 1Rx4 design works with server chipsets that accept PC3-8500 CL11 modules at 1066 MHz.

Will this CL11 1066 MHz stick run reliably alongside slower CL11 DDR3 ECC registered DIMMs already installed?

Yes, the module runs at DDR3 1066 with CL11 timing, matching the speed and latency of existing PC3-8500 registered ECC DIMMs for stable mixed-population operation.

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