HP Memory - 8GB DDR3 SDRAM
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Product Information
Full details
This HP 647899-B21 memory module is designed for IT professionals and system administrators managing HP ProLiant Gen8 servers, offering enhanced reliability and performance for demanding data center environments. Its key benefit is the assurance of high-quality, HP-tested memory that unlocks specific system features for optimal operation. A potential caveat is its specific compatibility with ProLiant Gen8 series, requiring verification before purchase. This 8GB DDR3 SDRAM module operates at 1600 MHz with a CAS latency of 11, featuring ECC for data integrity.
All features
| Colour | Black |
|---|---|
| Model Part Number | 647899-B21 |
| Brand | HP |
Extended Product Information
FAQs
What is the primary benefit of HP SmartMemory?
HP SmartMemory allows ProLiant Gen8 systems to reliably identify and verify that installed memory has passed HP's rigorous qualification and testing processes. This authentication enables extended memory performance features to be enabled through the system ROM.
Is this memory compatible with servers other than HP ProLiant Gen8?
This module is specifically designed and tested for HP ProLiant Gen8 servers. While it is a DDR3 1600 MHz DIMM, compatibility with other server brands or models is not guaranteed and should be thoroughly checked against their specifications.
What does 'Registered (buffered)' mean for this memory?
Registered memory includes a register chip that buffers command and address signals between the memory controller and the DRAM modules. This reduces electrical load on the memory controller, allowing for more memory modules to be installed and improving stability in systems with high memory capacities, like servers.
What is ECC memory?
ECC stands for Error-Correcting Code. It is a type of RAM that can detect and correct the most common kinds of internal data corruption. This feature is critical for servers where data integrity is paramount.
How do I determine the correct memory for my server?
Consult your HP ProLiant Gen8 server's technical specifications or user manual. It will detail the supported memory type (DDR3), speed (MHz), form factor (DIMM), and capacity per slot and overall.
Can I mix this module with other brands of RAM?
While technically possible in some scenarios, mixing memory modules from different manufacturers or with different specifications is not recommended. It can lead to instability, reduced performance, or compatibility issues. For optimal performance and reliability, it's best to use identical modules.
What is the CAS Latency (CL) of this module?
The CAS Latency of this HP memory module is 11.
Troubleshooting
Server does not boot or beeps error codes after installation
Ensure the memory module is fully seated in the DIMM slot. Verify module compatibility with the specific ProLiant Gen8 server model. Check for correct slot population order as per the server manual. Try booting with a single module to isolate issues.
System instability or random crashes
Run a memory diagnostic tool (e.g., HP-provided diagnostics or memtest86+) to check for errors. Ensure the memory voltage (1.5V) is correct for the system. Verify that all installed modules are of the same type and speed.
Reduced performance compared to expectations
Confirm the memory is running at its rated speed (1600 MHz) by checking system BIOS settings. Ensure the memory is installed in the correct slots for optimal channel performance. Check if other system components are bottlenecking performance.
Module not recognized by the system
Reseat the memory module. Check the system's maximum supported memory capacity and ensure it's not exceeded. Clean the DIMM slot contacts gently with compressed air if dust is present.
Pros and Cons
Pros
- Enhances ProLiant Gen8 server performance and reliability.
- Features ECC for improved data integrity.
- High-quality, HP-tested memory ensures compatibility.
- Designed for demanding PC/Server applications.
- Unlocks advanced system features with HP SmartMemory.
Cons
- Specifically designed for HP ProLiant Gen8 servers, limiting broader compatibility.
- 8GB capacity may be insufficient for extremely large datasets or virtualized environments.
- As a single module, it doesn't offer the same redundancy as dual-channel configurations without additional modules.
- Registered (buffered) memory may not be suitable for all system types.
Setup, Compatibility & Care
Compatibility: This HP 647899-B21 memory module is specifically designed for HP ProLiant Gen8 servers. Always verify your server's technical specifications and motherboard compatibility to ensure it supports 1600 MHz DDR3 Registered DIMMs and the maximum memory capacity per slot. Refer to your server's user manual for detailed compatibility information.
Installation:
- Power Down: Ensure the server is completely powered off and unplugged.
- Open Chassis: Access the server's internal components according to the manufacturer's instructions.
- Locate DIMM Slot: Identify an available DIMM slot. Refer to your server's manual for the correct slot population order, especially when adding to existing memory.
- Insert Module: Align the notch on the memory module with the key in the DIMM slot. Gently but firmly press down on both ends of the module until the retention clips snap into place.
- Close Chassis & Power On: Secure the server chassis and power the system back on.
Care: Memory modules require minimal physical care. Avoid touching the gold contacts to prevent contamination. Store modules in anti-static packaging when not installed. Ensure the server has adequate airflow to prevent overheating, which can impact memory performance and longevity.