Qual a diferença entre memória RDIMM e UDIMM?

RDIMM (Registered) usa um buffer de registro que reduz a carga elétrica e permite mais módulos por canal, suportando até 8TB de RAM em servidores dual-socket, ideal para servidores rack e blade. UDIMM (Unbuffered) acessa a memória diretamente, com latência menor, mas limita a quantidade de módulos (128-256GB típico), sendo indicada para workstations e servidores torre de entrada.

Memória ECC é obrigatória para servidores?

Não é obrigatória, mas é altamente recomendada. A tecnologia ECC detecta e corrige erros de memória automaticamente em tempo real, protegendo a integridade dos dados e reduzindo crashes e corrupção em aplicações críticas como virtualização, bancos de dados e ERP. Todos os módulos desta coleção são ECC.

Como sei se preciso de DDR4 ou DDR5?

Depende da geração do seu servidor ou workstation. DDR4 atende HPE ProLiant Gen10, Dell PowerEdge 14ª/15ª geração e Lenovo ThinkSystem v2, com velocidades de 2666 a 3200 MHz. DDR5 é para as gerações mais novas (ProLiant Gen11, PowerEdge 16ª geração, ThinkSystem v3), com 4800 a 5600 MHz e até 50% mais performance consumindo 30% menos energia. Os dois padrões não são intercambiáveis.

Quanta memória RAM meu servidor precisa?

Para virtualização, calcule 4-8GB por VM mais o overhead do hypervisor. Para bancos de dados, considere o tamanho do working set mais 20-30% de margem. Sinais de que é hora de fazer upgrade: VMs lentas, uso excessivo de swap/pagefile ou monitoramento acima de 80% de uso contínuo de RAM.

A I.T. Computers ajuda a escolher o módulo compatível com meu servidor?

Sim. Trabalhamos com memórias originais HPE, Dell e Lenovo com compatibilidade certificada e garantia do fabricante, entregues para todo o Brasil. Envie o modelo do seu servidor para cotacoes@itcomputers.com.br ou ligue 0800 590 0343 que indicamos o módulo exato.

DDR4 ECC and DDR5 Memory for Servers and Workstations

Enterprise DDR4 and DDR5 ECC Memory - Performance and Reliability

Discover the complete line of DDR4 and DDR5 RAM with ECC for servers, workstations, and enterprise desktops. Registered (RDIMM) and Unbuffered (UDIMM) modules from 8GB to 64GB from HPE, Dell, and Lenovo brands, with warranty and certified compatibility for maximum reliability in critical applications.

Why Choose Enterprise ECC Memory?

ECC (Error-Correcting Code) - Automatically detects and corrects memory errors in real time, essential for data integrity in servers and critical applications. Reduces crashes and data corruption.
Certified Compatibility - Modules tested and certified by HPE, Dell, and Lenovo, ensuring full compatibility with PowerEdge, ProLiant, and ThinkSystem servers.
HPE SmartMemory Technology - HPE memory with optimized firmware that communicates with iLO for advanced monitoring, error detection, and proactive alerts.
Manufacturer Warranty - All modules include an HPE, Dell, or Lenovo warranty with specialized technical support and replacement in case of failure.
Optimized Performance - Speeds from 2666 MHz to 5600 MHz with optimized latencies for maximum performance in enterprise applications.
24/7 Reliability - Enterprise modules designed for continuous 24/7 operation with superior MTBF and rigorous quality testing.

DDR4 ECC Memory

DDR4 RDIMM (Registered DIMM) - Registered modules with a registration buffer for servers. Available from 8GB to 64GB per module, with speeds from 2666 MHz to 3200 MHz. They support up to 8TB of total RAM in dual-socket servers. Compatible with HPE ProLiant Gen10, Dell PowerEdge 14th/15th generation, and Lenovo ThinkSystem. Ideal for virtualization, databases, and memory-intensive applications.

DDR4 UDIMM (Unbuffered DIMM) - Unbuffered modules for workstations and entry-level tower servers. Available from 8GB to 32GB per module, with speeds from 2666 MHz to 3200 MHz. Compatible with Dell Precision workstations, HP Z-Series, and ML30, T160, ST50 tower servers. Ideal for professional workstations and small servers.

DDR5 ECC Memory - Latest Generation

DDR5 RDIMM (Registered DIMM) - Latest generation DDR5 Registered modules. Available from 16GB to 64GB per module, with speeds from 4800 MHz to 5600 MHz. Up to 50% better performance than DDR4 with 30% less power consumption. Compatible with Gen11 servers: HPE ProLiant DL380 Gen11, Dell PowerEdge R760/R660, and Lenovo ThinkSystem SR650v3. Essential for next-generation applications.

DDR5 UDIMM (Unbuffered DIMM) - DDR5 Unbuffered modules for modern workstations. Available from 8GB to 32GB per module, with speeds from 4800 MHz to 5600 MHz. Compatible with latest generation workstations and Gen11 tower servers. Ideal for professionals working with CAD, 3D rendering, 4K/8K video editing, and development.

Differences: RDIMM vs UDIMM

RDIMM (Registered): The registration buffer reduces electrical load, allowing more modules per channel. Supports up to 8TB of RAM in dual-socket servers. Slightly higher latency. Use: rack and blade servers.

UDIMM (Unbuffered): No buffer, direct memory access. Lower latency but limits the number of modules. Typically maximum 128-256GB. Use: workstations, desktops, and entry-level tower servers.

Applications by Capacity

8-16GB per module: Entry-level servers, basic workstations, file servers, domain controllers.

32GB per module: Medium virtualization (VMware, Hyper-V), medium databases, business applications, VDI.

64GB per module: Dense virtualization, in-memory databases (SAP HANA), big data analytics, HPC, AI/ML.

Memory Upgrade

When to upgrade: Slow or crashing VMs, database with insufficient cache, applications excessively using swap/pagefile, monitoring showing 80%+ RAM usage.

How to calculate needs: Virtualization = 4-8GB per VM + hypervisor overhead. Database = working set size + 20-30% buffer. Applications = manufacturer requirements + 20% margin.

Compatibility by Server

HPE ProLiant: Gen10 (DDR4), Gen11 (DDR5). SmartMemory with monitoring via iLO 5.

Dell PowerEdge: 14th/15th generation (DDR4), 16th generation (DDR5). Monitoring via iDRAC 9.

Lenovo ThinkSystem: v2 (DDR4), v3 (DDR5). Monitoring via XClarity Controller.

Original HPE, Dell, and Lenovo memory with ECC, manufacturer warranty, and delivery throughout Brazil. Invest in certified enterprise memory and ensure performance and reliability for your critical applications.