Questions about Intel pro 1000

I'm searching some informations about intel pro 1000 requierement in a ISIS network environment.

I looked in differents read me, but i have some questions.

We only need the Intel pro 1000 PT  with HPz400 or HPz800 workstation ? or Non qualified computer by avid ?

With the z420 and z820 there is an integrated network port qualified , but with the CPU GEN V2 both integrated port are qualified.

So if i resume in environnement HP Workstations, i need intel pro 1000 PT on Z400 and Z800 or if i need a dual Gb connection with z420 and z820 G1 ??

And if it's the case , this informations is valid for all versions ISIS ? (4.7, 4.5 etc ...)

ISIS 5000 / 7000 / 1000 ?????

Regards ,