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Green DDR4 ECC registered RDIMM with black chips no heat spreader 288 pins

OWC

OWC 16GB DDR4 2400MHz ECC Registered RDIMM 2Rx8 CL17 1.2V 288-pin Lenovo ThinkServer

SKU CH-ZDSQ-52QXM

16 GB DDR4 ECC registered RDIMM at 2400 MHz for Lenovo ThinkServer RD350, RD450, RD550, RD650 and TD350

  • Total capacity16 GB
  • Rated speedDDR4 2400 (PC4 19200)
  • CAS latencyCL17
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx8
  • 16 GB DDR4 ECC RDIMM for Lenovo ThinkServer RD350 RD450 RD550 RD650 TD350
  • Registered 2Rx8 design with CL17 latency at 2400 MHz for server stability
  • 2 V low-voltage operation reduces power draw in multi-module configs
  • JEDEC compliant PC4-19200 module replaces Lenovo part 4X70G88330
  • ECC registered architecture prevents data corruption in critical workloads

16GB DDR4 2400MHz ECC RDIMM for Lenovo ThinkServer

This OWC module is a 16GB DDR4 2400MHz ECC Registered RDIMM built for Lenovo ThinkServer systems. It runs at PC4-19200 speed with CL17 latency and 1.2V voltage. The 288-pin 2Rx8 design includes error-correcting code and registered buffering for server stability.

Suits ThinkServer RD350 RD450 RD550 RD650 TD350

It fits Lenovo ThinkServer models RD350, RD450, RD550, RD650 and TD350 using the E5-2600 v4 platform. Buyers who need unbuffered memory for a standard desktop should look elsewhere. It cannot be mixed with non-ECC or unbuffered modules in the same system.

Simple DIMM slot installation no heat spreader

Installation is a standard DIMM insertion into the 288-pin DDR4 slots on the supported ThinkServer boards. The module has no heat spreader, so ensure adequate chassis airflow. The main issue is attempting to use it in a consumer desktop or mixing it with unbuffered memory, which will prevent boot.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $108.99
Cheaper than about 67% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $6.81 per GB
Cheaper than about 58% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number2R4D42R816 GB
Total capacity16 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 2400 (PC4 19200)
Memory
CAS latencyCL17
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V

Other versions of this model

5 more in the same range

Questions about this item

Which Lenovo ThinkServer models must I already own for this OWC 16GB DDR4 2400MHz ECC RDIMM to work?

This module is validated for Lenovo ThinkServer RD350, RD450, RD550, RD650 and TD350 systems built on the E5-2600 v4 platform.

Can I keep my existing unbuffered DDR4 DIMMs and add this 2Rx8 registered ECC module alongside them?

No — registered ECC memory cannot be mixed with unbuffered DIMMs; all slots must use registered ECC modules of matching specification.

How do I confirm the 2400MHz CL17 1.2V module is running correctly after installation?

Check the system BIOS or UEFI memory information screen — it should report 2400 MT/s speed, CL17 latency, 1.2 V voltage and ECC registered status for each installed DIMM.

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