809083-091 is the HPE assembly part number for 32GB (1 x 32GB) Dual Rank x4 DDR4-2400 CAS-17-17-17 Registered Memory Kit. This is the number you will typically see printed on the module label or returned by an HPE PartSurfer lookup, and it identifies the module as built rather than as ordered. The module is a 288-pin DDR4 registered DIMM rated at 2400 MHz, PC4-19200, CL17 with 17-17-17 timings, running at 1.2 V. It uses x4 chip organization, dual rank construction, and ECC for data integrity. If the label on the DIMM in your hand reads 809083-091, the specifications on this page apply to it.
HPE Option Part #: 805351-B21
HPE Spare Part #: 819412-001
HPE Assembly Part #: 809083-091
PRODUCT SPECIFICATIONS FOR 809083-091:
- Type: DRAM
- Product Type: Memory module
- Form Factor: DIMM 288-pin
- Technology: DDR4 SDRAM
- Storage Capacity: 32 GB
- Registered or Buffered: Registered
- Data Integrity Check: ECC
- Chips Organization: X4
- Memory Speed: 2400 megahertz
- Memory Specification Compliance: PC4-19200
- Supply Voltage: 1.2 volt
- CAS Latency: CL17
- Latency Timings: 17-17-17
- RAM Features: Dual Rank
COMPATIBLE WITH:
PROLIANT BL SERIES
PROLIANT DL SERIES
PROLIANT ML SERIES
PROLIANT XL SERIES
PROLIANT WS SERIES
** This list may not be complete. Contact us via Live Chat if you have any questions about compatibility.
FREQUENTLY ASKED QUESTIONS ABOUT 809083-091
What is the difference between 809083-091, 805351-B21 and 819412-001?
All three identify the same physical 32GB dual rank x4 DDR4-2400 registered DIMM. 809083-091, the number on this page, is the assembly part number, which is what generally appears on the module label and in PartSurfer results. 805351-B21 is the option part number used when the memory is ordered as a sales kit. 819412-001 is the spare part number used for service replacement. The hardware and specifications are identical across all three.
How do I confirm the module I am holding matches this page?
Check the label for 809083-091 and compare the printed specifications. The module should be a 288-pin DDR4 DIMM with 32 GB capacity, a 2400 MHz rating, PC4-19200 compliance, CL17 latency with 17-17-17 timings, 1.2 V supply voltage, registered buffering, ECC, x4 chip organization, and dual rank construction. If every one of those attributes matches, you have the same product described here.
Which servers accept this module?
This DIMM is listed for HPE Gen9 servers configured with v4 processors: BL460c Gen9, WS460c Gen9, DL60 Gen9, DL80 Gen9, DL120 Gen9, DL160 Gen9, DL180 Gen9, DL360 Gen9, DL380 Gen9, ML110 Gen9, ML150 Gen9, ML350 Gen9, XL170r Gen9 and XL190r Gen9. The v4 CPU requirement matters, so verify the processor generation installed in the system before placing the module.
What do the registered, ECC and x4 attributes mean here?
Registered means the module buffers address and command signals, which is what HPE server platforms require for this class of DIMM. ECC provides data integrity checking through error correction on the memory bus. X4 refers to the chip organization, describing a four-bit wide DRAM device layout. Combined with dual rank construction, these attributes define how the module presents itself to the memory controller.
What speed and latency does 809083-091 run at?
The module is rated for DDR4-2400 operation, meeting the PC4-19200 specification, with a CAS latency of CL17 and latency timings of 17-17-17 at 1.2 V. Actual operating speed in a given server depends on the installed processor and the total memory population, so a system may clock the DIMM below its 2400 MHz rating in some configurations.
HPE PARTSURFER INFO FOR 809083-091 (805351-B21)
| Spare PN | Description | |
|---|---|---|
 | 819412-001 | HPE SmartMemory 32GB, 2400MHz, PC4-2400T-R, DDR4, dual-rank x4, 1.20V, CAS-17-17-17, registered dual in-line memory module (RDIMM) |
Last Updated: 2026-07-26
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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
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