I get a lower amount of steps in orca, compared to deMon2k.

In deMon2k I use something like:

DYNAMICS STEP=1.2 MAX=50000 INT=10

BASIS

Y (QECP11|SD)

Li (DZVP)

H (DZVP)

ECPS

Y (QECP11|SD)

AUXIS

Y (GEN-A2*)

Li (GEN-A2)

H (GEN-A2)

SCFTYPE MAX=4000 TOL=5.0E-7

VXCTYPE PW86 AUXIS

BATH NOSE NHC=3 T=300

VELOCITIES RANDOM T=300.0

LPCONSERVE ON

SHIFT 0.3

GEOMETRY CARTESIAN ANGSTROM

H 0.000 0.000 0.000

.

.

and in orca

! MD BP86 D3 def2-TZVP

%md

initvel 300_K

timestep 1.0_fs

thermostat NHC 300_K timecon 10.0_fs

dump position stride 1 filename “trajectory.xyz”

Restart IfExists

run 50000

end

* XYZ 0 2

H 0.000 0.000 0.000

.

.