HMCG78MEBRA113N - 16GB DDR5-4800 ECC RDIMM | SK hynix
料号： HMCG78MEBRA113N ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $118 | $118.00 |
| 10 | $112.5 | $1,125.00 |
| 100 | $106 | $10,600.00 |
| 500 | $99.5 | $49,750.00 |
| 1,000 | $94 | $94,000.00 |
HMCG78MEBRA113N 概述
A registered (buffered) DIMM is a server-class memory module that places a register between the DRAM arrays and the memory controller, reducing electrical load on the command/address lines and enabling higher module counts per channel than unbuffered desktop UDIMMs. RDIMMs sit within the memory module hierarchy (DRAM IC -> module -> registered DIMM -> enterprise memory subsystem) and are the standard memory type for servers and workstations, distinguishing them from unregistered ECC SODIMMs and consumer UDIMMs.
Key features of the HMCG78MEBRA113N include its 16GB capacity per module, 4800 MT/s data rate certified as PC5-38400, and on-module ECC registered architecture that corrects single-bit memory errors for data integrity in always-on enterprise systems. The 1.1V operating voltage follows the JEDEC DDR5 standard, delivering lower power per bit transferred than DDR4 RDIMMs of equivalent capacity. The 1Rx8 single-rank organization keeps command scheduling simple for the memory controller and suits dense multi-DIMM-per-channel server boards.
Technically, the module uses DDR5 DRAM devices with on-die ECC and a side-band management interface, and the register/buffer logic decouples command/address signaling so the module meets JEDEC DDR5 RDIMM timing at 4800 MT/s with CL40 (40-40-40 typical JEDEC scaling). Backward compatibility to 4400 MT/s is supported on platforms whose memory controllers negotiate lower speeds.
Typical applications include enterprise servers based on Intel Xeon Scalable 4th/5th Gen and AMD EPYC processors, such as HPE ProLiant Gen10+/Gen11, Dell PowerEdge 16G series, and Lenovo ThinkSystem platforms, as well as virtualization hosts and data-intensive workloads where ECC protection is mandatory.
When designing or configuring systems, populate DIMM slots per the server vendor's population rules for single-rank RDIMMs and confirm that the platform BIOS supports 4800 MT/s; otherwise the module will downclock gracefully to the highest mutually supported JEDEC speed.
This page synthesizes distributor pricing, stock data, drop-in alternative module numbers, and platform compatibility notes not found in a single manufacturer datasheet.
直接替换替代料： HMCG78MEBRA113N ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： HMCG78MEBRA113N （相同外形与封装尺寸） ——差异在于 Memory Type, Data Rate, Form Factor, Operating Voltage, CAS Latency.
快速对比工具——选择替代料号进行并排对比：
HMCG78MEBRA107N
✅ 直接替换📋 参考替代料（不在目录中）
HMCG78MEBRA115N
✅ 直接替换📋 参考替代料（不在目录中）
HMCG78MEBRA174N
✅ 直接替换📋 参考替代料（不在目录中）
HMCG88MEBRA113N
✅ 直接替换📋 参考替代料（不在目录中）
HMCG88MEBRA115N
✅ 直接替换📋 参考替代料（不在目录中）
HMCG78MEBRA113N 最大额定值与电气特性
| 存储器类型 | DDR5 SDRAM |
| Module Type | 288-Pin ECC Registered DIMM (RDIMM) |
| Capacity | 16 GB |
| 数据速率 | 4800 MT/s (PC5-38400) |
| CAS 延迟 | CL40 |
| Rank x Organization | 1Rx8 (Single Rank, x8) |
| Operating Voltage | 1.1 V |
| ECC | Yes (Registered, ECC) |
| 引脚数量 | 288 |
| Form Factor | RDIMM (288-pin) |
| Compatible Platforms | HPE ProLiant Gen10+/Gen11, Dell PowerEdge 16G, Lenovo ThinkSystem (Intel Xeon Scalable 4th/5th Gen, AMD EPYC) |
| Backward Speed Compatibility | 4400 MT/s |
| Packaging | Bulk |
HMCG78MEBRA113N standard 引脚配置指南
HMCG78MEBRA113N（standard 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： HMCG78MEBRA113N.
请参阅 数据手册 以查看完整引脚配置。
典型应用
HMCG78MEBRA113N 适用于 6 应用s: Enterprise Server Memory, Virtualization Hosts, Data Center Memory Upgrades, Workstations, In-Memory Databases, Network Appliance and Storage Controllers.
Enterprise Server Memory
The HMCG78MEBRA113N is purpose-built for enterprise server memory channels on Intel Xeon Scalable 4th/5th Gen and AMD EPYC platforms. Its 4800 MT/s data rate delivers 38.4 GB/s per module (PC5-38400), while the ECC Registered architecture keeps command/address loading low enough for 8 DIMMs per channel - a requirement unbuffered modules cannot meet. The 1Rx8 single-rank design simplifies memory-controller training and supports homogeneous populations per vendor guidelines. Deployed in HPE ProLiant Gen10+/Gen11 and Dell PowerEdge 16G chassis, the 1.1V rail keeps per-module power low so dense 2U systems stay within thermal budgets while providing full DDR5 bandwidth for virtualization and database workloads.
推荐
Virtualization Hosts
Virtualization platforms such as VMware ESXi and KVM hosts benefit directly from the HMCG78MEBRA113N's combination of ECC protection and 4800 MT/s bandwidth. Hypervisors randomize memory access across many VMs, increasing the exposure window for soft errors; the module's registered ECC corrects single-bit faults before they corrupt guest state, sustaining months of uptime. Its 16GB granularity matches typical per-VM allocations (4-16GB), letting administrators populate 256GB-class hosts with predictable rank interleaving. Because RDIMMs are mandatory on Xeon Scalable and EPYC server boards, this module slots directly into standard virtualization reference configurations from HPE, Dell, and Lenovo without firmware customization.
推荐
Data Center Memory Upgrades
For data center fleet-wide refresh programs, the HMCG78MEBRA113N offers a proven, JEDEC-standard 16GB DDR5-4800 RDIMM with over 36,000 pieces of distributor stock reported as of mid-2026, minimizing deployment risk across hundreds of servers. Modules sourced in bulk (288-pin, 1.1V, PC5-38400) keep spare-part inventories homogeneous, simplifying RMA handling. Third-party compatibility lists (NEMIX, A-Tech) document drop-in interchange with sibling Hynix suffixes (107N/115N/174N), giving procurement teams multiple sourcing lines for the same BOM position. The module's automatic downclock to 4400 MT/s protects mixed-generation fleets where older BIOS builds have not yet enabled the 4800 speed bin.
推荐
Workstations
High-end workstations built on Xeon W and Threadripper PRO platforms that accept registered DDR5 DIMMs can use the HMCG78MEBRA113N for ECC-protected content creation, CAD, and simulation workloads. Its 4800 MT/s transfer rate feeds memory-bandwidth-hungry rendering and finite-element solvers, while ECC prevents silent bit flips that would otherwise invalidate multi-hour compute jobs. The 16GB 1Rx8 configuration allows incremental capacity builds (16/32/64GB stations) with predictable thermal behavior at 1.1V in compact chassis with limited airflow. Buyers should confirm the workstation QVL lists 4800-capable RDIMM bins; otherwise the module downclocks to the platform's supported speed, retaining full ECC functionality.
推荐
In-Memory Databases
In-memory database engines (SAP HANA-class, Redis Enterprise, AnalyticDB workloads) are sensitive to both capacity density and data integrity, making the HMCG78MEBRA113N a fit for mid-tier nodes. The module's 38.4 GB/s per-DIMM bandwidth at 4800 MT/s supports column-scan acceleration, while RDIMM ECC plus DDR5 on-die ECC protects the working set from the soft-error rates that scale with DRAM density and uptime. Its single-rank 1Rx8 organization lets database servers populate high DIMM counts per channel with stable signal timing at 1.1V. For HANA-certified servers from HPE and Lenovo, this module family commonly appears on the vendor memory QVLs for 16GB expansion positions.
推荐
Network Appliance and Storage Controllers
Storage controllers and network appliances (SAN heads, NVMe-oF gateways, firewall appliances) built on server-class Xeon or EPYC SoCs require RDIMMs, and the HMCG78MEBRA113N's 16GB 1Rx8 configuration suits the moderate-capacity, high-reliability profile of these embedded server designs. ECC Registered operation protects packet buffers and metadata caches against bit errors during 24/7 operation, and the 4800 MT/s rate keeps line-rate packet processing supplied with descriptor rings and flow tables. Appliance OEMs also value the module's documented interchange with sibling Hynix suffixes (107N/115N/174N) for multi-year supply continuity, and its 1.1V operation relaxes the power budget of passively cooled 1U enclosures.
推荐
推荐产品汇总
工程参考数据： HMCG78MEBRA113N ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | HMCG78MEBRA107N | HMCG78MEBRA115N | HMCG78MEBRA174N | HMCG88MEBRA113N | HMCG88MEBRA115N |
|---|---|---|---|---|---|---|
| Package | 288-pin DDR5 RDIMM | 288-pin DDR5 RDIMM - same | 288-pin DDR5 RDIMM - same | 288-pin DDR5 RDIMM - same | 288-pin DDR5 RDIMM - same | 288-pin DDR5 RDIMM - same |
| Brand | SK hynix | SK hynix | SK hynix | SK hynix | SK hynix | SK hynix |
| Capacity | 16 GB | 16 GB | 16 GB | 16 GB | 32 GB | 32 GB |
| Data Rate | 4800 MT/s (PC5-38400) | 4800 MT/s | 4800 MT/s | 4800 MT/s | 4800 MT/s | 4800 MT/s |
| Memory Type / ECC | DDR5 ECC Registered | DDR5 ECC Registered | DDR5 ECC Registered | DDR5 ECC Registered | DDR5 ECC Registered | DDR5 ECC Registered |
| Operating Voltage | 1.1 V | 1.1 V | 1.1 V | 1.1 V | 1.1 V | 1.1 V |
| Packaging | Bulk | Bulk | Bulk | Bulk | Bulk | Bulk |
关键差异点
- Highest per-slot value in verified family （对比 HMCG88MEBRA113N)
- Broad interchange within Hynix suffix family （对比 HMCG78MEBRA107N)
- Graceful speed fallback （对比 HMCG88MEBRA115N)
设计说明
Never mix RDIMMs with UDIMMs or SODIMMs, and do not install this 288-pin RDIMM in consumer desktop boards - the registered protocol will prevent POST entirely. When populating mixed capacities (16GB HMCG78MEBRA113N alongside 32GB HMCG88MEBRA113N), follow the server vendor population order (typically fill white/primary slots first per channel) and expect the channel to train at the lowest common speed. Verify BIOS is at the vendor's latest DDR5 training release to avoid early Gen11/16G memory-training bugs.
Each HMCG78MEBRA113N draws its 1.1V rail from the server's DDR VDD plane. Estimated: a fully populated 8-DIMM channel with 16GB modules at 4800 MT/s can draw roughly 5-8W per module under load, so budget approximately 40-64W per channel when sizing PSU headroom and cooling - this is an estimate, not a datasheet figure. The 1.1V JEDEC voltage (vs 1.2V for DDR4) reduces per-module power but increases current density; ensure VRM and board copper are rated for DDR5 server-class currents.
Registered DIMMs shift signal-integrity burden to the module's register, but channel training quality still depends on seating and slot hygiene. Clean DIMM slot contacts with approved electronics-grade contact cleaner if systems exhibit training failures after years in dusty data centers, and always seat by pressing both ends until the latches close fully - partial seating is the leading cause of DDR5 training errors. Confirm chassis airflow covers DIMM slots; server DIMMs at 4800 MT/s rely on forced air rather than heatsinks on this module class.
合规信息
Compliance details not stated in the provided verified web data; JEDEC-standard server DRAM modules are typically RoHS-compliant but this must be confirmed with SK hynix documentation.
