SGI drive sleds and interfaces?

OK, with my new Origin 2000 machines, I was thinking that I could use these SGI drives+sleds that I had purchased previously, where the seller said they would work in Onyx2/Origin machines. However, while the sleds appear compatible, the drive interface is not. Is there any online guide that compares the different drive sled designs for SGI machines so that I can compare what's being offered on ebay to identify the machines that can use it? For instance, my drives have a high density connector that is only about 1" long, but the Origin 2000 has a high density connector that looks to be about 2-2.5" long. Is my only recourse to scrape through individual manuals to try and find diagrams? -- "The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download <http://www.xmission.com/~legalize/book/download/index.html> Legalize Adulthood! <http://blogs.xmission.com/legalize/>