Re: Could it just be a squeeze on Intel?
NT on Alpha was because DEC was important then and also writing good NT software. DEC had VAX clusters, so naturally figured out Cluster using two vanilla Servers with dual SCSI cards, external isolator if a card failed and two sets of shared SCSI drives.
Also did Intel even have a 64 bit CPU when the 64 bit NT 4.0 for DEC alpha 64 was produced?
It was a niche alternative to UNIX or DEC's OS, not serious competition for Intel.