usually it does but Im not sure about. I actually somehow dont trust your manufacturer.
would you mind changing your manufacturer to a known one?
this one doesnt need a 6-pin power adapter.
ASUS GTX 650: http://www.asus.com/Graphics_Cards/GTX650E2GD5/
this one does, but comes with a molex 6-pin power adapter
Inno3d GTX 650ti: http://www.inno3d.com/products/graphic_card/gf600/gtx_650ti.html
if you really prefer the boost edition
Inno3d GTX 650Ti BOOST: http://www.inno3d.com/product/gtx650ti_boost.html
if you insist on the axle3d. would you mind telling me why?.