HP-SMH: IDE error device n/a

[dark-sun]

hello,
I have a problem with a DL320G5 with Red Hat 3

In the SMH the standard IDE controller shows error, I install the actuall firmware (using boot DVD (FW920B.2010_1129.2.iso) and de- and re-install the HP-agents.
But still the same error. The SATA which we use for the disks is OK, I think this is only the unused Controller from DVD/CD drive.
But how can I get this part also in state "green"?
I can't find an option to disable IDE in the BIOS, this will be OK for me.

Thanks!