# Memory Module HPE DDR4 16GB 2666MHz

**URL:** https://aio.lv/en/product--hp-enterprise-840756-091-ob--4808797
**Data updated:** 2025-12-29 17:43 (EET)
**Category:** Memory (RAM)
**Manufacturer:** HP Enterprise
**Manufacturer code:** 840756-091-OB
**EAN:** 005704174551539
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The HPE 840756-091 memory module offers 16 GB of DDR4 ECC RAM with a clock speed of 2666 MHz. Designed for PC and server use, it features a 288-pin DIMM form factor and CAS latency of 19. This memory module ensures reliable performance and stability, making it ideal for demanding applications and multitasking environments.

## Long description

The HPE DDR4 16GB 2666MHz memory module (HPE 840756-091) is a 288-pin DIMM designed for HP Enterprise servers and compatible PCs. It provides 16 GB of DDR4 ECC SDRAM with a 2666 MHz clock speed and CAS latency 19. Engineered for server environments, this module targets reliable performance and stability for virtualization, large databases and other memory‑intensive workloads when used in HPE ProLiant Gen9/Gen10, Apollo, Synergy and Blade systems.
Advantages
This HPE SmartMemory module is qualified and tested for compatibility with HPE Gen9 and Gen10 platforms, enabling extended memory features supported by Hewlett Packard Enterprise servers. The DDR4 ECC design improves data integrity and uptime, while the 288‑pin DIMM form factor and standard 2666 MHz speed deliver predictable performance for server and workstation tasks.
Suitable for
HPE ProLiant Gen9 and Gen10 servers
Apollo family and Blade systems
Synergy composable infrastructure
Virtualization hosts and hypervisor servers
Large database and in‑memory applications
Key specifications
Manufacturer: HP Enterprise (HPE)
Model / MPN: 840756-091
Capacity: 16 GB
Type: DDR4 ECC SDRAM
Clock speed: 2666 MHz
CAS latency: 19
Form factor: 288‑pin DIMM
Compatible systems: HPE ProLiant Gen9/Gen10, Apollo, Synergy, Blade
How to use
Power down the server or workstation and follow the manufacturer’s anti‑static precautions. Locate the appropriate DIMM slots on the motherboard or server memory riser and align the notch on the 288‑pin DIMM with the slot key. Firmly press the module into the slot until the retention clips engage. After installation, power on the system and verify that the firmware/BIOS recognizes the new 16 GB module and that ECC is enabled if required.
Usage recommendations
Install memory modules in matched pairs or per the server’s memory population guidelines to ensure optimal performance and to enable full bandwidth and error‑correction features supported by HPE platforms.

## Specifications

### Features

| Feature | Value |
|---|---|
| Internal memory | 16 GB |
| Internal memory type | DDR4 |
| Memory clock speed | 2666 MHz |
| Memory form factor | 288-pin DIMM |
| ECC | Yes |
| CAS latency | 19 |
| Memory ranking | 2 |
| Component for | PC/Server |
| Memory layout (modules x size) | 1 x 16 |
| Compatible products | ProLiant BL460c Gen10 |
| Buffered memory type | Registered (buffered) |

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### What is the warranty period?

All HP Enterprise products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized HP Enterprise service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: internal memory, internal memory type, memory clock speed, memory form factor, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

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