Sounds like an ordinary (for SGI types of ordinary)
Onyx2. That has the
framebuffer hardware in the upper module, and CPUs in the lower; one
framebuffer module per machine, but up to 7 (IIRC) CPU modules in
multi-rack configurations.
Seven CPU modules is unpossible. The (hyper)cube topology nust be maintained, so you can
only expand a machine by doubling the number of modules connected together. Powers of
two.
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