After i reinstalled the host the hardware status was good (used a new build iso. # 1065491)
after this i configured my host then I patched the host to # 1157734
then i check to see if the hardware status was OK but i noticed that all sensors where Normal but the HP ProLiant DL380 G6 was unknown after a minute is was Normal.
so not a real issue then went to install the dell multipathing module after this sensors where still good. before adding the host in the cluster i rebooted the server again
still no problem
before adding the host back into the cluster I removed the old host and then added the new host to the cluster.
now the hardware status tab is still OK 
the issue seems to be resolved for now.