HMCG84MEBRA107N - 32GB DDR5-4800 ECC RDIMM | SK Hynix
MPN: HMCG84MEBRA107N ✓ نشطHMCG84MEBRA107N نظرة عامة
A registered DIMM (RDIMM) is a server-class memory module that buffers the address and command signals through a register IC before they reach the DRAM devices. This buffering reduces the electrical load on the memory controller, allowing servers to populate more DIMM slots per channel than with unbuffered UDIMMs. RDIMMs sit within the memory hierarchy of DDR5 SDRAM -> registered memory module -> server memory subsystem, and are the default choice for data-center platforms built on Intel Xeon Scalable and AMD EPYC processors.
Key features of this module include the 32GB capacity organized as 1Rx4, the DDR5-4800 transfer rate (PC5-38400 bandwidth), and on-module ECC with registered signaling per the JEDEC DDR5 RDIMM architecture. DDR5 brings the power management IC (PMIC) on-module, cutting the host board's voltage-regulation burden, while the 1.1V operating voltage lowers system power compared with DDR4's 1.2V.
The dual-data-rate DDR5 architecture with two independent 32-bit sub-channels per module improves effective memory concurrency, and the CL40 CAS latency at 4800 MT/s yields a 16.67 ns base cycle time. On-die ECC within each DRAM die plus link ECC protects against cell-level faults, complementing the registered ECC path expected by the server memory controller.
Typical applications include general-purpose 2-socket rack servers, edge-compute and low-VM-density hosts, virtualization platforms, and workstation-class boards with RDIMM slots. Its 32GB density balances per-channel capacity and cost, making it a common baseline DIMM for 256GB-class server configurations.
When designing or upgrading, verify the host platform's Qualified Vendor List (QVL), because server BIOSes only train speeds that the CPU memory controller and module register IC both support; mixing 1Rx4 and 2Rx4 modules on one channel may drop the trained speed below 4800 MT/s.
This page synthesizes distributor pricing, drop-in RDIMM alternatives, comparison data, and practical deployment notes not found on the manufacturer datasheet alone.
بدائل مباشرة لـ HMCG84MEBRA107N — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع HMCG84MEBRA107N (نفس عامل الشكل والبصمة) — يختلف في Form Factor, ECC, Module Type, Data Rate, CAS Latency.
HMCG88MEBRA107N
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
HMCG84MEBRA174N
✅ بديل مباشر✓ متوفر في المخزون
$1115.625 / وحدة
عرض ورقة البيانات ←HMCG84AGBRA191N
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←HMCG78MEBRA113N
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←HMCG78AEBRA107N
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←A-Tech 32GB DDR5-4800 ECC RDIMM
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
HMCG84MEBRA107N الحدود القصوى والخصائص الكهربائية
| نوع الذاكرة | DDR5 SDRAM RDIMM |
| Capacity | 32 GB |
| Transfer Rate | 4800 Mbps (MT/s) |
| Bandwidth Rating | PC5-38400 |
| زمن الوصول CAS | CL40 |
| Operating Voltage | 1.1 V |
| Form Factor | 288-pin RDIMM (SDP-RDIMM) |
| Rank / Organization | 1Rx4 |
| ECC | Yes (registered ECC) |
| Registration | Registered (buffered address/command) |
| Packaging | Bulk |
| Application Class | Server / Data Center |
| Manufacturer | SK Hynix |
| On-module PMIC | Yes (DDR5 standard) |
دليل تكوين أطراف HMCG84MEBRA107N standard
تكوين الأطراف لـ HMCG84MEBRA107N (حزمة standard). تتضمن هذه الدائرة المتكاملة الرقمية GPIO وواجهات الاتصال (UART وSPI وI2C) وأطراف الطاقة. راجع ورقة بيانات الشركة المصنعة لوظائف الأطراف البديلة وخيارات التكوين. ضرورية لتصميم الأنظمة المدمجة وتخطيط PCB.
لا تتوفر بيانات مفصلة لمخطط التوصيلات لـ HMCG84MEBRA107N.
راجع ورقة البيانات للحصول على تكوين الأطراف الكامل.
التطبيقات النموذجية
HMCG84MEBRA107N مناسب لـ 6 التطبيقs: General-Purpose Rack Servers, Edge Compute Appliances, Virtualization Hosts, Workstation Memory Upgrades, Storage Controllers and Appliances, Test and Measurement Servers.
General-Purpose Rack Servers
The HMCG84MEBRA107N fits general-purpose 1U/2U rack servers that require 288-pin DDR5-4800 registered ECC memory. Its 32GB density at 4800 MT/s (PC5-38400) delivers balanced bandwidth and capacity for web serving, databases, and file services on Intel Xeon Scalable and AMD EPYC platforms. Eight modules per server yield 256GB with ECC protection and registered signaling that keeps the memory controller within load limits at full slot population. Because the DDR5 PMIC is on-module, the host board needs only a 1.1V-compliant slot, simplifying platform power design versus DDR4 generation servers.
موصى به
Edge Compute Appliances
Edge compute nodes benefit from the HMCG84MEBRA107N's combination of server-class reliability and moderate power draw. The 1.1V operating voltage and on-module PMIC reduce per-module power versus DDR4 registered memory, important for passively cooled or constrained edge enclosures. The 32GB capacity supports container runtimes and local inference caches at low VM density, while DDR5-4800 bandwidth feeds modern edge SoCs without throttling. Registered ECC protects against bit errors in environments with limited service access, where an uncorrected memory fault could take a remote site offline for days.
موصى به
Virtualization Hosts
For virtualization hosts running moderate VM counts, the HMCG84MEBRA107N provides the per-module capacity and bandwidth that hypervisors need. DDR5's dual 32-bit sub-channels improve concurrency for many small memory transactions typical of VM switching, and the 4800 MT/s rate sustains aggregate bandwidth across populated channels. ECC at the die, link, and registered rank layers reduces soft-error-driven VM crashes. A 12-slot platform populated with this module reaches 384GB, sufficient for most departmental consolidation workloads while keeping cost per GB competitive with higher-speed bins.
موصى به
Workstation Memory Upgrades
RDIMM-capable workstation platforms can use the HMCG84MEBRA107N for CAD, simulation, and content-creation workloads. The 32GB single-rank module gives 4800 MT/s bandwidth for large model assembly and rendering scene data, while ECC catches memory errors during multi-hour render or solver jobs that would otherwise corrupt output silently. Single-rank organization keeps command-bus loading low, preserving stability at two DIMMs per channel. Verify the workstation vendor supports RDIMMs, since most desktop boards require UDIMMs and cannot accept this registered module electrically.
موصى به
Storage Controllers and Appliances
Storage appliances and RAID controllers use registered DDR5 memory as write-cache and metadata buffers, where the HMCG84MEBRA107N's ECC layers matter most. A lost write-cache transaction corrupts the volume, so registered ECC plus on-die ECC materially reduces uncorrectable-error probability versus consumer memory. The 32GB capacity fits modern deduplication and metadata caches, and DDR5-4800 bandwidth keeps parity calculations and log writes from bottlenecking NVMe backend arrays. Platforms should populate channels per the controller vendor's validated population rules for the 1Rx4 organization.
موصى به
Test and Measurement Servers
Instrumentation back-ends and data-acquisition servers handling high-rate streaming rely on the HMCG84MEBRA107N for jitter-tolerant buffering. DDR5-4800 provides 38.4 GB/s nominal bandwidth per module, enough to absorb multi-gigasample digitizer streams before disk offload, and registered signaling preserves signal integrity in electrically noisy rack environments. The CL40 latency at 1.1V trades a slightly higher access latency for lower power, which is acceptable in streaming workloads dominated by sequential bandwidth. ECC prevents silent corruption in long-duration logging campaigns common in test labs.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ HMCG84MEBRA107N — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | HMCG88MEBRA107N | HMCG84MEBRA174N | HMCG78MEBRA113N | HMCG78AEBRA107N |
|---|---|---|---|---|---|
| Package | 288-pin RDIMM (SDP-RDIMM) | 288-pin RDIMM (SDP-RDIMM) - same | 288-pin RDIMM - same | 288-pin RDIMM - same | 288-pin RDIMM - same |
| Brand | SK Hynix | SK Hynix | SK Hynix | SK Hynix | SK Hynix |
| Capacity | 32 GB | 32 GB | 32 GB | 16 GB | 16 GB |
| ECC / Registration | ECC, Registered | ECC, Registered | ECC, Registered | ECC, Registered | ECC, Registered |
| Operating Voltage | 1.1 V | 1.1 V | 1.1 V | 1.1 V | 1.1 V |
| Packaging | Bulk | Bulk | Bulk | Bulk | Bulk |
أبرز الفروقات
- Single-rank 1Rx4 organization reduces bus load (مقابلHMCG88MEBRA107N)
- Double capacity of 16GB family parts (مقابلHMCG78AEBRA107N)
- Cost-optimized 4800 speed bin (مقابلHMCG84AGBRA191N)
ملاحظات التصميم
Always validate the HMCG84MEBRA107N against the server vendor's Qualified Vendor List (QVL) before deployment. Server BIOS memory-training tables only support specific register IC and DRAM combinations; an unlisted module may fall back to a lower JEDEC speed (e.g., 4400 MT/s) or fail POST. Do not mix 1Rx4 and 2Rx4 modules on the same channel without checking the platform's population rules, as mixed-rank topologies commonly derate the trained speed below DDR5-4800.
Estimated: each DDR5-4800 RDIMM draws roughly 4-6 W at 1.1V under typical server workloads (estimate based on DDR5 JEDEC-class module power envelopes, not a datasheet figure). A 24-module 2-socket server therefore budgets about 100-150 W for memory alone. Confirm the platform's per-channel power budget and airflow, since modules at the channel end see the highest inlet temperature from upstream DIMM waste heat.
DDR5 modules integrate an on-module PMIC that becomes the hottest component on the assembly. Maintain at least the server vendor's specified DIMM inlet airflow; in dense 1U chassis, use heat-spreader-equipped modules and verify intake temperature stays within the JEDEC module operating envelope. Thermal throttling of the PMIC can force the memory controller to downclock below the 4800 MT/s rating even when the DRAM itself is cool.
معلومات الامتثال
Compliance data not stated in the provided distributor listings; request RoHS/REACH declarations from SK Hynix or the distributor before procurement.
