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Green rectangular DDR4 memory module with gold edge contacts and black chips, no heat spreader

OWC

OWC 2R9D48R4128G 128GB DDR4 2933 ECC Registered RDIMM HX7520 HX7521 HX7820 VX 1U VX 2U memory upgrade

SKU CH-7PBQ-YYTVX

A single 128GB DDR4 2933 ECC registered RDIMM for Lenovo ThinkAgile HX and VX servers

  • Capacity128GB
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS Latency21
  • Voltage1.2V
  • ECCYes
  • 128 GB single-module capacity fits dense server configurations
  • ECC registered design protects data integrity in critical workloads
  • DDR4 2933 MHz speed with CL21 latency delivers responsive throughput
  • 2 V operation reduces power draw per module
  • Validated for Lenovo ThinkAgile HX7520, HX7521, HX7820, VX 1U and VX 2U systems

128GB DDR4 2933 ECC RDIMM for ThinkAgile

This OWC 2R9D48R4128G module delivers 128GB of DDR4 2933 registered ECC memory in a single 288-pin DIMM. It is built for Lenovo ThinkAgile HX7520, HX7521, HX7820, VX 1U and VX 2U systems running second-generation Xeon processors. The 8Rx4 organisation and 1.2V operation meet server-class requirements for data integrity and capacity density.

Upgrade from lower-capacity or slower DDR4 RDIMMs

The module replaces smaller registered DIMMs or slower PC4-23400, 2133, 2400 and 2666MHz sticks while keeping full JEDEC compliance. The jump is worth it when workloads demand maximum rank density per slot and error-correcting code protection without mixing buffered, unbuffered or load-reduced types. It will not fit standard desktop platforms or systems that require unbuffered memory.

Sustained load behaviour in multi-DIMM

Registered signalling and on-die ECC maintain signal integrity when all channels are populated at 2933MHz CL21. The 1.2V design limits thermal output during continuous compute or virtualisation tasks, and the lack of a heat spreader relies on chassis airflow for cooling. Backward compatibility with lower speeds allows stable operation if the platform downclocks under heavy sustained utilisation.

商品特色

  • 128 GB single-module capacity fits dense server configurations
  • ECC registered design protects data integrity in critical workloads
  • DDR4 2933 MHz speed with CL21 latency delivers responsive throughput
  • 2 V operation reduces power draw per module
  • Validated for Lenovo ThinkAgile HX7520, HX7521, HX7820, VX 1U and VX 2U systems

商品規格

BrandOWC
Part Number2R9D48R4128G
Capacity128GB
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2933 (PC4 23400)
CAS Latency21
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank8Rx4
Heat SpreaderNo
Compatible SystemLenovo ThinkAgile (Xeon SP Gen 2) HX7520
Lenovo ThinkAgile (Xeon SP Gen 2) HX7521
Lenovo ThinkAgile (Xeon SP Gen 2) HX7820
Lenovo ThinkAgile (Xeon SP Gen 2) VX 1U
Lenovo ThinkAgile (Xeon SP Gen 2) VX 2U

商品問答

Will the 288-pin DDR4 RDIMM fit the memory slots in my Lenovo ThinkAgile HX7520 server?

Yes — the module is a 288-pin DDR4 ECC Registered DIMM built to JEDEC standards, which matches the slot and electrical spec of the listed ThinkAgile models.

What is the correct seating procedure for this 128GB registered module, and what step do installers most often miss?

Power down the server, open the chassis, align the notch on the 288-pin edge connector with the slot key, press firmly until both retention clips click, then verify in BIOS that the full 128GB is recognised at 2933 MT/s.

When should I plan to replace this 128GB ECC RDIMM?

Replace it if the system logs uncorrectable ECC errors, if memory diagnostics report persistent failures, or when a platform upgrade requires a different memory specification.

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