HDA and AC'97 connectors are standardized, my money is on someone screwed up the diagram because if it call itself an HDA connection it has a certain layout, if it calls itself an AC'97 connection it has a different layout, no matter if the two manuals differ in their diagram it will still work fine.
HDA and AC'97 connectors are standardized, my money is on someone screwed up the diagram because if it call itself an HDA connection it has a certain layout, if it calls itself an AC'97 connection it has a different layout, no matter if the two manuals differ in their diagram it will still work fine.