The 9-pin D-sub is just to point out something easy to see near the header. The required header pins are next to the largest connector on one corner of the board (the 9-pin D-sub)…the serial console port. The header itself has “FRONT PANEL” on the silkscreen and matches standard motherboard headers where the power switch and other standard chassis connection would be performed on a desktop PC motherboard. This provides alternate access to the power and reset buttons.
Detailed description for verification is on the schematic. Just search for “FRONT PANEL” or “J1A1”. Go here, log in (requires a separate login and registration which is not the same as forum login), select product “Jetson TK1”, and search for “schematic”. The design files will contain schematics with J1A1 layout:
[url]https://developer.nvidia.com/embedded/downloads[/url]