HP A2231-60001 Series 800 900 8MB ECC SIMM Memory Module 72-Pin

HP A2231-60001 Series 800 900 8MB ECC SIMM Memory Module 72-Pin

The HP A2231-60001 is an 8MB ECC (Error-Correcting Code) SIMM memory module designed specifically for HP Series 800 and Series 900 workstations and servers. This is a proprietary HP memory module — not a standard PC SIMM — built to HP's specifications for use in their PA-RISC-based systems. The module carries HP's own part number A2231-60001 and is silk-screened "Series 800/900 Memory" on the reverse side, confirming its system compatibility.

Specifications & What's Included

• Part Number: A2231-60001
• Capacity: 8MB
• Type: ECC SIMM (Error-Correcting Code Single Inline Memory Module)
• Form Factor: SIMM (proprietary HP format)
• ECC: Yes
• Compatible Systems: HP Series 800 and Series 900 workstations and servers
• Memory ICs: NEC DRAM chips (multiple ICs visible on both sides of PCB)
• HP Controller IC present on component side
• PCB Revision: Rev A (silkscreen on PCB)
• Label Identifiers: A-3110, 56-3352
• Country of Manufacture: Japan (visible on chip markings)
• Included: Module only; no packaging

Applications

The HP Series 800 and Series 900 were HP's PA-RISC-based workstation and server lines, produced through the late 1980s and into the 1990s. These systems ran HP-UX and were used extensively in engineering, scientific computing, financial, and enterprise server environments. Memory for these platforms is proprietary — standard PC SIMMs are not compatible — making genuine HP modules like the A2231-60001 the correct replacement or upgrade path for anyone maintaining legacy HP 9000-series hardware. ECC memory was a standard feature on HP's commercial and technical workstation lines of this era, providing single-bit error correction important for data integrity in compute-intensive and server workloads. These modules are increasingly hard to source as the supply of genuine HP spares diminishes, making them sought after by legacy system maintainers and collectors keeping HP PA-RISC hardware operational.