Diskette animation booting IBM x3550 7978CBG

I have to manage / reinstall an ibm x3550 model 7978CBG server but it can't boot from cd.

I have put in the cd some bootable cd's such Centos 6 ( some flavors ) and Proxmox ve but the server does not boot.

I thought could be configuration / boot order issue, so I changed it in BIOS booting first from cd but until now there is no luck.

The system boots and shows an animation drawing a drive and a diskette suggesting you press F1 key.

I am not sure, but I believe I have no wrong disk configuration.

The system bios version is 1.09

I am searching redbooks, advice or a hand.

Thanks

CLOSED: drive detected as primary master, but it was broken

thanks to all.