This is an Extremely Rare Amdahl Multi Chip Carrier CPU Board using ECL Technology from an Amdahl 5890 Super Computer from the 1980s.
It comes complete with a Carrier Frame and Cover used to store it when not in use in a Computer.
This is a Large Board with the Carrier and Cover weighing in at 3.25Kg and overall dimensions of 33cm x 29cm
This is another one of the Holy Grails for CPU Collectors World Wide and is Extremley difficult to find in this Excellent Condition.
Amdahl Corporation was an information technology company which specialized in IBM mainframe-compatible computer products, some of which were regarded as supercomputers competing with those from Cray Research.
Founded in 1970 by Gene Amdahl, a former IBM computer engineer best known as chief architect of System/360, it has been a wholly owned subsidiary of Fujitsu since 1997.
The company was located in Sunnyvale, California.
In the late 1970s, Amdahl began an effort to develop a next-generation systems architecture under the 580 project.
Both the Amdahl engineering teams and Fujitsu strongly suggested developing a multi-processor architecture.
Gene Amdahl was against this and wanted to develop a faster single processor.
Things came to a head in 1979, and Amdahl left the company in August to start Trilogy Systems.
With Gene Amdahl's departure, and increasing influence from Fujitsu, Amdahl entered the large-scale multiprocessor market in the mid-1980s with the 5860, 5870 (attached processor) and 5880 (full multiprocessor) models.
In the 580 systems, the chips were mounted in an 11-by-11 array on multi-layer boards called Multi-Chip Carriers (MCCs) that were positioned in high-airflow for cooling.
The MCCs were mounted horizontally in a large rectangular frame.
The MCCs slid into a complex physical connection system.
The processor "side panels" interconnected the system, providing clock propagation delays that maintained race-free synchronous operation at relatively high clock frequencies (15–18 ns base clock cycles).
This processor box was cooled by high-speed fans generating horizontal airflow across the MCCs
This is one of those Boards
I can assure any buyers that the prices for these vintage Chips will rise significantly over the coming years as they have done so over the past 30 years so it will be a good investment for them as the majority of the older chips have been scrapped for their gold content.
