NANYA NT4GC72BNA1NL-CG 4GB DDR3 ECC Registered DIMM (HP 500203-061 equivalent): This is a 4GB DDR3 server-class registered DIMM (RDIMM) with ECC, in a 240-pin form factor. The module is a Nanya-manufactured part cross-referenced as HP P/N 500203-061. This is a buffered registered DIMM intended for HP ProLiant servers and equivalent registered-memory platforms; it is not a desktop UDIMM and is not a laptop SODIMM. This is a refurbished unit.
Engineering Context
Registered DIMMs include a register chip that buffers address and command signals between the memory controller and the DRAM chips, which reduces controller electrical load when multiple modules are populated per channel. This is why server platforms specify RDIMM rather than unbuffered DIMM at higher DIMM-per-channel counts. The module uses an ECC-capable 72-bit data path instead of the 64-bit path used on consumer DIMMs, allowing the memory controller to correct single-bit errors and detect multi-bit errors at run time. The 240-pin DDR3 keying is mechanically incompatible with DDR2 (different notch position) and DDR4 (288-pin) sockets.
Deployment & Use Cases
HP ProLiant servers and HP workstations that specify HP part 500203-061 on their qualified-vendor memory list, restorations of existing DDR3 ECC RDIMM-based hosts, and replacement units for failed modules in virtualization, database, and file-server roles where matching the original HP-listed part number is required to satisfy the platform's qualified-memory rules.
Technical Specifications
Manufacturer: Nanya
Manufacturer Part Number: NT4GC72BNA1NL-CG
HP Equivalent: 500203-061
Capacity: 4GB
Memory Type: DDR3 SDRAM
Class: Registered DIMM (RDIMM), Buffered
Error Correction: ECC (72-bit data path)
Form Factor: 240-pin DIMM
Modules per SKU: 1
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Compatible with HP server platforms that list HP P/N 500203-061 on their qualified-vendor memory list and with motherboards that accept generic 240-pin DDR3 ECC registered DIMMs at the same speed grade. Not compatible with DDR2 or DDR4 motherboards (different keying and pin counts). Not compatible with desktop motherboards that require unbuffered DIMMs (UDIMM); registered modules will not POST on UDIMM-only platforms. Not compatible with laptops or any system using SODIMM. Some HP servers enforce HP-branded SmartMemory through firmware checks; verify the qualified-vendor list for your specific server before purchase.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS performs functional memory testing on every module before dispatch and confirms POST and full-pattern memtest passes. We provide guidance on HP qualified-memory matching, ship globally with a typical handling time of 1 to 3 business days, and back every refurbished module with our standard warranty. See tes-itsolutions.com for the full inventory.