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Four green DDR4 RDIMM modules with black heat spreaders and gold contacts

SK hynix

SK hynix MEM-DR480L-HL01-ER29 32GB (4x8GB) DDR4-2933 CL21 1Rx8 ECC Registered server RAM

SKU CH-T250-V60R0 MPN MEM-DR480L-HL01-ER29

32GB kit of four 8GB DDR4-2933 CL21 1Rx8 ECC registered DIMMs for servers

  • Capacity32GB (4 x 8GB)
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.20V
  • ECCYes
  • ECC protection prevents data corruption with built-in error correction
  • Registered design improves signal integrity for heavy server workloads
  • DDR4 2933 speed delivers high bandwidth at 1.2V low voltage
  • Four 8GB modules provide 32GB total capacity for dense configurations
  • 1Rx8 organisation with CL21 latency optimised for registered DIMM platforms

Server-grade DDR4 memory kit

This 32GB kit contains four 8GB DDR4-2933 registered DIMMs with ECC and CL21 latency. It is built for servers and workstations that require error correction and signal integrity under sustained loads. The modules operate at 1.20V and conform to the PC4-23400 standard. Desktop boards that cannot use registered ECC memory will not accept these sticks.

Thermals noise and power draw

Each module runs at the standard DDR4 voltage of 1.20V, keeping power draw low for high-density server configurations. Registered buffering reduces electrical load on the memory controller, which helps thermal stability in fully populated slots. No active cooling is included; airflow across the 31.25mm module height is expected from the chassis design. Acoustic impact is negligible because the DIMMs have no moving parts.

Registered ECC and parity checking

The registered design adds a register between the DRAM and the memory controller, enabling parity checking that detects improper addresses or commands. ECC corrects single-bit errors and detects multi-bit errors to protect data integrity in critical workloads. These features replace the need for non-ECC consumer modules in supported platforms. No software utilities or additional accessories are bundled with the kit.

I korthet

  • ECC protection prevents data corruption with built-in error correction
  • Registered design improves signal integrity for heavy server workloads
  • DDR4 2933 speed delivers high bandwidth at 1.2V low voltage
  • Four 8GB modules provide 32GB total capacity for dense configurations
  • 1Rx8 organisation with CL21 latency optimised for registered DIMM platforms

Specifikationer

BrandSK hynix
ModelHMA81GR7CJR8N-WM
Capacity32GB (4 x 8GB)
Type288-Pin DDR4 SDRAM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered

Frågor om den här produkten

How do I install the 288-pin DDR4 RDIMMs and what step is often missed?

Align the notch on each module with the slot key, press firmly until both retention clips click, and ensure the registered buffer engages — skipping the clip check is the common error.

What maintenance or replacement will the 1Rx8 ECC registered modules need over time?

No routine maintenance is required; replace a module only if the system logs uncorrectable ECC errors or a DIMM fails POST testing.

What limit appears first on the PC4-23400 CL21 kit under sustained heavy workloads?

The registered buffer and CL21 latency set the throughput ceiling before thermal or voltage limits become a factor.

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