[rjsw]

Back when AMD released the first Opteron CPUs there was a vendor selling an FPGA that would plug into an Opteron socket along with the IP to implement HyperTransport in the FPGA.

[kijiki]

Really? I used a HT FPGA back then, but it came on an HTX card that fit into the HTX slot on the motherboard.

Never heard of putting it into the socket, would be a real pain to attach JTAG to program/debug your design...