HPE 128GB DDR5 SDRAM Memory Module - Black
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Product Information
Full details
This HPE 128GB DDR5 SDRAM Memory Module is designed for small to large enterprise servers requiring enhanced performance, capacity, and reliability. It offers a significant boost in bandwidth and reduced latency compared to previous DDR generations, enabling better handling of demanding workloads like virtualization and large databases. A key caveat is that its full benefits are unlocked when used within compatible HPE servers, which also ensures rigorous qualification and testing. Key features include its 128GB capacity, high-speed DDR5-4800 technology, ECC support for data integrity, and Registered (buffered) operation for server stability.
All features
| Colour | Black |
|---|---|
| Model Part Number | P69974-B21 |
| Brand | HPE |
Extended Product Information
FAQs
What is the primary benefit of DDR5 memory over DDR4?
DDR5 memory offers significantly higher bandwidth and lower latency compared to DDR4, leading to faster data transfer rates and improved overall system performance, especially for memory-intensive applications.
What does 'Registered' or 'Buffered' mean for this memory module?
Registered memory modules have a register chip that buffers command and address signals between the memory controller and the DRAM chips. This reduces the electrical load on the memory controller, allowing for more memory modules to be installed and improving system stability in high-capacity configurations.
Is this memory module compatible with non-HPE servers?
While the module is a standard DDR5 DIMM, HPE 'SmartMemory' is qualified and tested specifically for HPE servers. Compatibility and guaranteed performance with non-HPE servers are not assured and may depend on the server's specific hardware and BIOS support.
What is ECC memory?
ECC stands for Error-Correcting Code. It's a type of error detection and correction capability built into the memory that can detect and fix common types of internal data corruption, enhancing reliability and preventing data loss.
How do I know if my HPE server supports this 128GB DDR5 module?
You should consult the official HPE documentation for your specific server model, such as the QuickSpecs or technical guide. These documents will list the supported memory types, capacities, and speeds.
Can I mix this DDR5 module with older DDR4 modules?
No, DDR5 memory is not backward compatible with DDR4 slots or systems. You can only use DDR5 modules in servers and slots specifically designed for DDR5 memory.
What does 'Dual Rank' mean in the context of this memory module?
Dual Rank memory has two independent sets of memory chips (ranks) on a single module. This allows the memory controller to access one rank while the other is being refreshed, potentially improving performance in certain workloads by reducing wait times.
Troubleshooting
Server does not boot or memory is not recognized.
Ensure the memory module is fully seated in the correct slot. Verify server compatibility with 128GB DDR5 RDIMMs. Check the server's BIOS/UEFI settings. Consult the server's technical documentation for correct population order if multiple modules are installed.
System instability or frequent errors (e.g., crashes, BSODs).
Confirm the memory module is qualified for your HPE server model. Ensure the server's cooling system is functioning correctly. Run memory diagnostics if available in the BIOS/UEFI. Check if the memory voltage (1.1V) is correctly configured if manual settings are allowed.
Performance is lower than expected.
Verify that the memory is running at its rated speed (4800 MT/s) in the BIOS/UEFI. Ensure the memory channel is configured correctly (e.g., populated in appropriate slots for dual-channel operation if applicable). Confirm no other system bottlenecks are present.
Pros and Cons
Pros
- Significantly increases server performance and capacity.
- Enhances data integrity and system stability with ECC.
- Offers improved power efficiency due to lower operating voltage.
- High-quality components ensure reliability for demanding enterprise environments.
- Dual-rank design can offer performance advantages in compatible systems.
Cons
- Requires a compatible HPE server to guarantee full functionality and validation.
- Higher initial cost compared to lower-capacity or older DDR modules.
- Only one module is included in this kit (1 x 128GB).
- DDR5 technology may not be backward compatible with older server generations.
Setup, Compatibility & Care
Setup:
- Verify Server Compatibility: Ensure your HPE server model explicitly supports 128GB DDR5 RDIMMs and the specific speed (4800 MT/s).
- Power Down: Completely shut down your server and disconnect all power cables.
- Install Module: Open the server chassis and carefully insert the 288-pin DIMM into the designated memory slot. Ensure it is fully seated.
- Refer to Server Documentation: Consult your HPE server's technical guide for specific memory population rules and optimal slot configurations for dual-rank modules.
- Power On: Reconnect power and boot the server. The system should automatically detect the new memory.
Compatibility:
- This module is designed for HPE servers that support DDR5 Registered DIMMs.
- Always check your specific HPE server model's QuickSpecs or technical documentation for a validated memory list.
- Using non-validated memory configurations may result in performance degradation or system instability.
Care:
- Handle the memory module by its edges to avoid touching the gold contacts.
- Store modules in anti-static packaging when not installed.
- Ensure the server environment has adequate cooling, as high-density memory can generate heat.
- Keep the server chassis closed to prevent dust accumulation on components.