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16GB RAM Replacement for Hynix HMT42GR7AMR4A-G7, HMT42GR7BMR4A-G7, HMT42GR7CMR4A-G7 | DDR3 1066MHz PC3L-8500 ECC RDIMM 4Rx4 Server Memory
- 16GB ( 1x 16GB Module ) | DDR3 1066 MHz ( PC3-8500 ) | DDR3 DIMM ( 240-Pin ) | ECC RDIMM ( Registered DIMM ) | 1.35V - DDR3 Low Voltage
- Compatible Equivalent for Hynix HMT42GR7AMR4A-G7, HMT42GR7BMR4A-G7, HMT42GR7CMR4A-G7
- 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 Hynix:
HMT42GR7AMR4A-G7
HMT42GR7BMR4A-G7
HMT42GR7CMR4A-G7
Memory Specs
Memory Size: 16 GB ( 1 x 16 GB Module )
Memory Type: DDR3
Form Factor: DIMM ( 240 Pin )
Speed: DDR3 1066 MHz ( PC3-8500 )
ECC Type: ECC RDIMM ( Registered DIMM )
Voltage: 1.35V
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 Hynix:
HMT42GR7AMR4A-G7
HMT42GR7BMR4A-G7
HMT42GR7CMR4A-G7
Memory Specs
Memory Size: 16 GB ( 1 x 16 GB Module )
Memory Type: DDR3
Form Factor: DIMM ( 240 Pin )
Speed: DDR3 1066 MHz ( PC3-8500 )
ECC Type: ECC RDIMM ( Registered DIMM )
Voltage: 1.35V
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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A-Tech 16GB DDR3L-1066 ECC Registered DIMM is a 240-pin, 4Rx4 server memory module for compatible servers and workstations that support 1.35V PC3L-8500 RDIMMs. It is listed as an equivalent replacement for specified Hynix HMT42GR7 models.
Recommended For
- IT administrators extending the life of a compatible legacy DDR3 server: this 16GB ECC registered module is a fit when the system supports 1066MHz, 4Rx4 RDIMMs. Intel lists the Hynix HMT42GR7AMR4A-G7 as validated for Westmere-EP platforms.
- Homelab users adding memory to a compatible DDR3 server for a NAS, backup server, containers, or several virtual machines; community reports describe DDR3 systems still being used for these jobs.
- Owners of supported Xeon-based server or workstation platforms who need ECC registered memory for ongoing server or workstation use; Intel documents DDR3 ECC RDIMM support for specific Xeon E5 platforms.
- Repairers or maintainers replacing a matching Hynix DDR3L module in an older system, provided the system’s compatibility list and memory population rules allow this exact capacity and rank.
Real-World Use Scenarios
- Replacing a failed or missing DIMM in a compatible older server: a matching supported module can restore memory capacity, helping the server return to its usual workload; check the server’s memory rules before installation.
- Adding memory to a compatible home-lab server running several small virtual machines: if the host is short on RAM, added capacity can give those VMs more room to run, though results depend on the server and workload.
- Keeping an older compatible server in service as a home NAS or backup server: the module can contribute to the host’s memory capacity for file-sharing and backup tasks, without changing the server’s storage or network limits.
- Running a small self-hosted setup on an older server, such as a NAS alongside containers or other home services: additional supported memory may provide more room for those services, but one 16GB module does not guarantee that every workload will fit.














