[ INDIVIDUAL COMPONENT // MEMORY / RAM ]
DDR4 ECC UDIMM (288-pin)
DDR4 ECC unbuffered DIMM module class. This record identifies a distinct product or standards-defined module class; specifications not verified for this exact identity are deliberately left open.
IDENTITY: DDR4 ECC UDIMM (288-pin) is cataloged as ddr4 ecc unbuffered dimm module class. Standards entries describe a module class; named manufacturer entries describe one SKU. Do not treat them as interchangeable records.
Recorded specifications
| Catalog identity | DDR4 ECC UDIMM (288-pin) |
|---|---|
| Record type | DDR4 ECC unbuffered DIMM module class |
| Verified specifications | 288-pin DDR4 unbuffered DIMM with an additional check-bit path for system-level ECC. Capacity, data rate, rank, timing, and voltage depend on module and platform; ECC UDIMM is not necessarily interchangeable with RDIMM. |
| Compatibility | Requires a CPU memory controller and motherboard/firmware that support ECC UDIMMs. A board may physically accept a DIMM yet disable ECC or reject the module. Never substitute registered modules unless platform documentation explicitly permits them. |
| Unverified/variable details | Only values supported by the cited standard or manufacturer source are stated. Confirm exact part number/revision, SPD, ranks, timings, and voltage on the specimen when not specified above. |
Platform compatibility and service
- Requires a CPU memory controller and motherboard/firmware that support ECC UDIMMs. A board may physically accept a DIMM yet disable ECC or reject the module. Never substitute registered modules unless platform documentation explicitly permits them.
- Before installation, record the full label, manufacturer, part number, revision/date code, contact condition, chip markings, and SPD contents where present.
- Use ESD precautions, handle the module by its edges, and never force it into a slot with different keying. Power down and follow the host’s service manual.
- For server/ECC modules, confirm CPU support, buffering type, channel population, supported ranks/densities, and firmware behavior; physical fit is not proof of ECC operation.
Archival and service notes
This names a module type, not a specific capacity or maker. Verify ECC reporting in firmware/OS and distinguish system-level ECC from DDR5 on-die ECC. Photograph both sides before cleaning; retain the host manual, SPD dump, test host, BIOS revision, and memory-test result with the catalog record.
Sources & further reading
- JEDEC — DDR4 SDRAM standard (JESD79-4)JEDEC generation reference; ECC organization and platform support are system-dependent.
- Kingston — ECC memory guideManufacturer compatibility reference for ECC and buffered module classes.
Manufacturer source identifies the named SKU where provided; standards pages describe a generation or module class. A source-family page may not capture every revision. Check the precise specimen and platform service documentation.