Please, download MXM version http://mellanox.com/downloads/hpc/mxm/v1.1/mxm_1.1.1328.tar
This version checked with OMPI-1.6.2 (http://svn.open-mpi.org/svn/ompi/branches/v1.6).
In the case of any failure, could you enclose the output? Regards, Aleksey.