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16GB RAM Replacement for IBM-Lenovo 78P4889 | DDR4 2400MHz PC4-19200 ECC RDIMM 1Rx4 Server Memory
- 16GB ( 1x 16GB Module ) | DDR4 2400 MHz ( PC4-19200 ) | DDR4 DIMM ( 288-Pin ) | ECC RDIMM ( Registered DIMM ) | 1.2V - DDR4 Standard Voltage
- Compatible Equivalent for IBM-Lenovo 78P4889
- High performance Memory RAM upgrade designed for Server/Workstation Systems
- All modules undergo quality assurance testing to ensure dependable and reliable performance | Please verify the supported memory (RAM) specifications of your system prior to purchase to ensure compatibility
- A-Tech provides a Lifetime Warranty for all orders & offers complimentary United States based Tech Support before, during, & after your purchase
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Overview
Specs
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An A-Tech Memory (RAM) upgrade is an easy, quick way to boost your system's performance by speeding up loading times, improving system responsiveness, and increasing your system's ability to handle higher workloads. Take on more and multitask with ease with a simple and affordable A-Tech Memory upgrade!
Compatible Memory Module Replacement for IBM-Lenovo:
78P4889
Memory Specs
Memory Size: 16 GB ( 1 x 16 GB Module )
Memory Type: DDR4
Form Factor: DIMM ( 288 Pin )
Speed: DDR4 2400 MHz ( PC4-19200 )
ECC Type: ECC RDIMM ( Registered DIMM )
Voltage: 1.2V
Ensured Reliability
All A-Tech Memory products are rigorously tested to ensure that your memory meets our stringent quality and performance standards.
Lifetime Warranty
Purchase with confidence knowing that all A-Tech orders are backed with our Lifetime Warranty.
US Based Technical Support
Need help? Have questions? Our 5 star United States based support team is here to help before, during, and after your purchase to make sure you are completely satisfied with your A-Tech Memory!
Compatible Memory Module Replacement for IBM-Lenovo:
78P4889
Memory Specs
Memory Size: 16 GB ( 1 x 16 GB Module )
Memory Type: DDR4
Form Factor: DIMM ( 288 Pin )
Speed: DDR4 2400 MHz ( PC4-19200 )
ECC Type: ECC RDIMM ( Registered DIMM )
Voltage: 1.2V
Ensured Reliability
All A-Tech Memory products are rigorously tested to ensure that your memory meets our stringent quality and performance standards.
Lifetime Warranty
Purchase with confidence knowing that all A-Tech orders are backed with our Lifetime Warranty.
US Based Technical Support
Need help? Have questions? Our 5 star United States based support team is here to help before, during, and after your purchase to make sure you are completely satisfied with your A-Tech Memory!
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
- CONTACT
Return Policies
- Return for refund within: 30 days
- Return for replacement within: 30 days
- This item is covered by A-Tech Return Policy
Manufacturer Contact Info
- For a directory of all our manufacturers, please click below.
- Manufacturers Directory
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The A-Tech 16GB DDR4-2400 ECC Registered DIMM is a single-module server memory upgrade for compatible systems, including those using IBM-Lenovo part 78P4889. Its 1Rx4, 288-pin design makes it suitable for server and workstation owners upgrading or replacing RAM, provided their system supports these specifications.
Recommended For
- Owners of a compatible IBM/Lenovo DDR4 server who need a single 16GB module as a replacement or incremental memory upgrade.
- Homelab operators expanding a DDR4 server that specifically supports ECC registered DIMMs and accepts the module’s capacity, speed, and rank.
- IT technicians maintaining older DDR4 server or workstation systems who need a registered ECC replacement rather than standard desktop memory.
Real-World Use Scenarios
- When a compatible server is running short on memory, adding this module increases installed RAM by 16GB, giving active services and applications more room; it may reduce memory pressure if RAM capacity is the bottleneck.
- For a small virtualization host running several light virtual machines, the added memory provides more capacity to allocate among guests before the host runs low; how many VMs it can support still depends on their workloads and the server’s total RAM.
- For a server running a database or business application, the extra capacity can help keep a larger active working set in memory when the system is RAM-constrained; it will not necessarily improve performance if another resource is limiting the workload.
- When replacing or matching memory in a supported IBM-Lenovo server, this ECC Registered DIMM can be used as a 16GB addition or replacement where the system supports its memory type and configuration; check the server’s compatibility and population rules before installing it.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | Server and workstation systems compatible with 16GB registered ECC DDR4 memory |
| Capacity | 16GB |
| Memory Type And Speed | DDR4-2400, PC4-19200 |
| Error Correction And Registration | ECC registered memory |
| Rank And Voltage | 1Rx4 rank at 1.20V |
| CAS Latency | CL17 |














