CD-ROM and CD works perfect.
To install CentOS i try to use Dell OpenManage Server Assistant. Then I go to step 7 "Install OS" CD of Assistant eject and need to put CD with CentOS. After I put CentOS CD to CD-ROM it change text in monitor to - Copy operating system: Isert "Red Hat Enterprise Linux 4.0 CD1".
At step 2 "Select Operating System" I can choose only:
Maybe all problem that I use not right Dell support CD. Can anybody help which one I need.