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Green rectangular DDR4 module with gold edge connectors and black memory chips on both sides

SAMSUNG

SAMSUNG 8GB DDR4 2133 ECC RDIMM 1Rx4 M393A1G40DB0-CPB2Q

SKU CH-JY78-5YTX9

An 8 GB registered DDR4 ECC module running at 2133 MT/s with CL15 latency and 1.2 V operation

  • Capacity8GB
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2133 (PC4 17000)
  • CAS LatencyCL15
  • Voltage1.20V
  • ECCYes
  • ECC protection prevents data corruption with 8-bit parity check
  • Registered design stabilises signals through on-board registers
  • 2133 MT/s speed delivers 17000 MB/s bandwidth
  • Single-rank 1Rx4 layout keeps electrical load low
  • 20 V operation reduces power draw per module

8GB DDR4 ECC Registered DIMM

This 8GB DDR4 module is built for servers and workstations that require error-correcting registered memory. It operates at 2133 MT/s with a CAS latency of 15 at 1.20V. The single-rank x4 organisation uses a 288-pin form factor. Buyers needing non-ECC or unbuffered DIMMs for consumer platforms cannot use this module.

Registered ECC with 1Rx4 organisation

The registered buffer and on-die ECC are the decisive specifications for compatibility. The module presents a 1Rx4 configuration with an 8-bit parity signal for error correction. Registers retime clock, command and control signals to reduce electrical load on the memory controller. Systems that require unbuffered memory or a different rank structure will not accept this DIMM.

Steady throughput at 1.20V

Under sustained load the module maintains its rated 2133 MT/s speed and CL15 timing at the standard 1.20V. The registered design helps signal integrity across fully populated channels during long compute runs. Thermal behaviour follows the DDR4 specification for registered DIMMs. No higher speeds or lower latencies are supported beyond the rated figures.

Points forts

  • ECC protection prevents data corruption with 8-bit parity check
  • Registered design stabilises signals through on-board registers
  • 2133 MT/s speed delivers 17000 MB/s bandwidth
  • Single-rank 1Rx4 layout keeps electrical load low
  • 20 V operation reduces power draw per module

Caractéristiques

BrandSAMSUNG
SeriesServer Memory
ModelSAMSUNG:M393A1G40DB0-CPB
SAMSUNG:M393A1G40EB1-CPB
CRUCIAL:CT8G4RFS4213
HYNIX:HMA41GR7MFR4N-TF
KINGSTON:KVR21R15S4/8
Capacity8GB
Type288-Pin DDR4 SDRAM
SpeedDDR4 2133 (PC4 17000)
CAS LatencyCL15
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx4
ChipsetMajor Brand Chipset
Compatible SystemM393A1G40DB0-CPB
FeaturesDual in line memory module with memory
-Includes registers for optimizing clock, command, and control signals
-Error correction is realized by adding 8-bit parity check signal
-Supports X4 / X8 organizations / up to 2 levels per DIMM and 3dpc configuration
-Application: Server

Questions sur cet article

How does the DDR4 2133 speed translate to real-world bandwidth inside a server?

The PC4-17000 rating means a peak transfer rate of 17 GB/s per module, so an 8 GB stick delivers that bandwidth when the memory controller runs at the rated 2133 MT/s.

What does the registered ECC design mean for signal integrity and capacity limits?

The onboard register re-drives clock, command and control lines, reducing electrical load on the CPU memory controller and allowing larger total memory populations than unbuffered DIMMs.

Will the 30 mm module height clear standard 1U server heatsinks and DIMM slots?

At 30 mm tall, 133 mm long and 3 mm thick, the 288-pin RDIMM fits the standard DDR4 slot profile used in the validated Supermicro X10 boards listed.

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