This item, 840756-191, is the HPE assembly number for the product described as 16GB (1x16GB) Dual Rank x8 DDR4-2666 CAS-19-19-19 Registered Smart Memory Kit. Further details below.
This 16GB HPE DDR4-2666 registered DIMM is designed to enhance the performance and stability of your Gen10 server. Operating at a speed of 2666 MHz with CAS Latency of 19-19-19, this module ensures quick data access and reduces bottlenecks in demanding applications.
Featuring dual-rank architecture and ECC data integrity, this memory kit provides reliable performance for critical workloads. This item is compatible with Gen10 servers; the list of compatible machines includes but may not be limited to the models provided. Designed for easy installation and optimal compatibility, this memory upgrade is an excellent choice for improving your server's responsiveness and overall efficiency.
HPE Option Part #: 838089-B21
HPE Spare Part #: 870840-001
HPE Assembly Part #: 840756-191
PRODUCT SPECIFICATIONS FOR 840756-191:
- Capacity: 16 GB
- Upgrade Type: System specific
- OEM Manufacturer Equivalent Part Number: HP 838089-B21, HP 870840-001
- Type: DRAM memory module
- Technology: DDR4 SDRAM
- Form Factor: DIMM 288-pin
- Speed: 2666 MHz (PC4-21300)
- Latency Timings: CL19 (19-19-19)
- Data Integrity Check: ECC
- Features: Dual Rank, registered
- Module Configuration: 2048 x 72
- Chips Organization: X8
- Voltage: 1.2 V
COMPATIBLE WITH:
OTHER HPE MACHINES
** This list may not be complete. Contact us via Live Chat if you have any questions about compatibility.
HPE PARTSURFER INFO FOR 840756-191 (838089-B21)
| Spare PN | Description | |
|---|---|---|
 | 870840-001 | 16GB PC4-2666V-R - registered synchronous dynamic random access memory (SDRAM), dual data rate (DDR4) mode, dual in-line memory module (DIMM) organized as 2Gx72 |
Last updated: 5/2/2025
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This product is warrantied against hardware failure for a period of 5 Years from the date of purchase. Before making a purchase, please take a moment to review our return policy below.
Returns
It is the customer's responsibility to verify compatibility with their machine(s) before placing an order. If an item is ordered by mistake, it can be returned for refund, minus a 25% restocking fee, within 5 business days of receipt. The cost of freight is not refundable.
Please be aware that factory-sealed equipment can only be returned if it remains unopened.
Defective Products
If you have received a defective part and your machine is still within the HPE warranty period, please initiate a warranty exchange by visiting the HPE Enterprise Support Center. Be sure to have the serial numbers of the defective drive and your server/storage array handy.
In case your hardware becomes defective during the Global One warranty period, but the HPE warranty has expired, you can return the product to us for a working replacement. You are responsible for the shipment of returned merchandise. However, we will cover the expense of Ground /Economy shipment for the replacement item(s).
Requesting an RMA
To initiate a return or warranty claim, please complete and submit the RMA Request Form.
