ESXI 5.5 physical - nested

Hello, I amvirtualizinga physicaltwoESXIonESXI, theversionI'm using is5.5,  runsperfectbut now I wantto virtualizevcenteron one of thetwovirtualizedESXi andhereis myproblem, whenI create thevirtualmachine withwindows2008r264bit andthestartshowsmean error:

Itrychangingthese values , but does not work

Ialsotrychangingthese same values​​in the originalESXIand neitherworked

any idea ?

regardss forum