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Green circuit board with black memory chips, 288 gold pins, no heat spreader

A-Tech

A-Tech 128GB DDR4 2933MHz ECC LRDIMM server RAM

SKU CH-Q3R1-G84C4

A 128 GB DDR4 2933 MHz ECC load-reduced DIMM for compatible HPE servers

  • Total capacity128 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced
  • 128GB single module expands server memory capacity for heavy workloads
  • DDR4 2933MHz PC4-23400 speed supports high-throughput data processing
  • ECC load-reduced design maintains data integrity under sustained operation
  • 2V standard voltage reduces power draw per module
  • 288-pin LRDIMM form factor fits compatible HP/HPE server slots

128GB DDR4 2933MHz ECC LRDIMM for HPE Servers

This 128GB DDR4 module runs at 2933MHz with CL21 latency and 1.20V operation. It uses a 288-pin LRDIMM form factor with 4DRx4/4Rx4 rank configuration and includes ECC error correction. The module is built as a direct replacement for HPE part numbers P18454-B21, P11057-1A1, P11057-6A1, P19047-B21, P19047-H21, and P19047-K21.

Upgrading from lower-capacity DDR4 LRDIMMs

Replacing smaller LRDIMMs with this 128GB module increases total memory capacity per slot, which is valuable for virtualization hosts and database servers that benefit from fewer populated slots. The jump is worth it when your workload demands maximum density and your platform supports 128GB LRDIMMs at 2933MHz. It does not suit systems limited to RDIMM or lower-density modules.

Fits 288-pin DDR4 LRDIMM server slots

The module installs in standard 288-pin DDR4 DIMM slots that support load-reduced memory. It requires a server platform qualified for 128GB LRDIMMs at 2933MHz with 1.20V operation. No heat spreader is present, so airflow across the module must be provided by the system chassis. Population rules and maximum per-channel limits depend on the specific server model.

How it compares

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

Price $928.99
Pricier than about 80% of the 6,523 comparable items (median $188.99).
Total capacity 128 GB
Higher than about 90% of the 6,064 comparable items (median 32 GB).
Price per GB $7.26 per GB
Typical for this category: the median of 6,064 items is $7.25 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 nameA-Tech
Product lineHP/HPE RAM Equivalent Replacement Memory
Model nameP18454-B21, P11057-1A1, P11057-6A1, P19047-B21, P19047-H21, P19047-K21
Part numberP18454-B21, P11057-1A1, P11057-6A1, P19047-B21, P19047-H21, P19047-K21
Total capacity128 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2933 (PC4 23400)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL21
ECC supportYes
Buffer typeLoad Reduced
Memory rank4DRx4/4Rx4
Heat spreaderNo
Power
Rated voltage1.2 V

Questions about this item

Will the 288-pin DDR4 LRDIMM fit my server's memory slots?

This module uses the standard 288-pin DDR4 DIMM form factor and requires a slot that supports Load Reduced ECC memory at 1.2V.

What is the correct way to seat the 128GB module so the ECC LRDIMM initialises?

Align the notch with the slot key, press straight down until both side clips click, and confirm the BIOS detects the full 128GB at 2933MHz.

When should I plan to replace this 128GB DDR4 2933MHz ECC LRDIMM?

Replace it if memory diagnostics report uncorrectable ECC errors, the server fails POST with this module installed, or a firmware update requires a different rank configuration.

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