A premium 13-piece collector's archive of vintage 1990s Intel enterprise server and mainframe engineering validation test hardware. This lot features unlidded, unpopulated purple ceramic Multi-Chip Modules (MCMs) and Pin Grid Array (PGA) plates engineered for Pentium Pro and Xeon-class system stress testing. Includes various geometric gold-plated quadrant carriers, open-face backplane edge-connector blades, and green fiberglass diagnostic breakout interposer boards used for real-time oscilloscope probing. All outer contact pins and testing grids are straight and uniform. An incredible structural timeline kit for shadowbox framing.TECHNICAL PRESERVATION & COMPLIANCE NOTICE:This item is a vintage, unpopulated semiconductor engineering sample, validation test vehicle, or historical computing artifact. It is sold strictly as a historical collectible, educational display piece, or for parts/restoration. Due to its vintage nature, pre-production status, and lack of standard retail packaging, it is offered completely AS-IS, with no guarantees of electrical functionality or software compatibility. No returns or refunds will be accepted based on structural performance