i'm guessing they had thought about it in the planning stage but backed out when adding up the cost factor. it appears the "Silicon Image Sil3114" has the capabilities.
you weren't seeing things i found a couple of references to it.
http://www.techreport.com/reviews/2003q4/chaintech-znf3-150/index.x?pg=3
http://www6.tomshardware.com/motherboard/20031201/socket_754-39.html
ud
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