AI Appraisal Estimate

This is a vintage Single Inline Memory Module (SIMM) computer RAM stick, notably featuring branding from IBM. The item consists of a dark green printed circuit board (PCB) approximately 4 inches in length. It features a 72-pin gold-plated edge connector along one side, characterized by a distinct notch in the center and a corner cutout for keyed insertion. On the face of the module, two large integrated circuit (IC) chips are visible. The top chip features a white label with the iconic 'IBM' logo. The lower chip bears a label with technical markings including 'SEC Korea 9819H' and a serial/part number 'KMM5321204CW-6'. This indicates the memory chips were manufactured by Samsung Electronics Company (SEC) in Korea, likely around the 19th week of 1998 based on the date code. The construction quality is typical of high-end enterprise hardware from the late 1990s, utilizing surface-mount technology. Condition-wise, the module appears used, showing minor scuffs on the labels and slight tarnishing on the contact pins, though no physical cracks or missing components are evident. This type of memory was standard in mid-to-late 1990s personal computers and servers.

Based on my visual inspection of this IBM 72-pin SIMM, I find it to be an authentic example of late-1990s enterprise-grade memory. The 'SEC' branding confirms Samsung-manufactured ICs, which were industry standard, while the IBM labeling suggests this was pulled from a proprietary workstation or server such as an RS/6000 or a high-end Aptiva model. The module appears to be 4MB or 8MB based on the KMM series part number. The physical condition is fair; while the PCB and chips are intact, the gold-plated pins show signs of insertion wear and oxidation that may affect connectivity without a chemical cleaning. Market demand for 72-pin SIMMs is currently driven by the 'retro-computing' hobbyist market, specifically for those restoring 486 or early Pentium-era systems. While IBM-branded components carry a slight premium for brand-loyal collectors, this specific module is not exceptionally rare, as millions were produced during the shift toward SDRAM. The primary limitation of this appraisal is the inability to perform a POST (Power-On Self-Test) or MemTest86 diagnostic. Digital images cannot reveal internal silicon degradation or ESD damage. To fully authenticate and value this item at the higher end of the range, I would require a successful memory test on a period-correct motherboard and verification of the parity/non-parity status via a BIOS read. Without proof of function, it is valued as an 'as-is' collectible component rather than a guaranteed functional part.