  We calculate properties of A=6 system using the accurate charge-dependent
nucleon-nucleon (NN) potential at fourth order of chiral perturbation theory.
By application of the ab initio no-core shell model (NCSM) and a variational
calculation in the harmonic oscillator basis with basis size up to 16 hbarOmega
we obtain the 6Li binding energy of 28.5(5) MeV and a converged excitation
spectrum. Also, we calculate properties of 10B using the same NN potential in a
basis space of up to 8 hbarOmega. Our results are consistent with results
obtained by standard accurate NN potentials and demonstrate a deficiency of
Hamiltonians consisting of only two-body terms. At this order of chiral
perturbation theory three-body terms appear. It is expected that inclusion of
such terms in the Hamiltonian will improve agreement with experiment.
