Quoting Mark Quitoriano markquitoriano@gmail.com:

Hi list,

Im having a problem with intel 82573L Gigabit Ethernet Controller. Centos 4.2 can't detect this internal ethernet port my motherboard is an Intel Desktop Board D945PSN.

when i type lspci the ethernet is identified but when i type dmesg i can't see the ethernet port.

Are you running the latest kernel? If not upgrade to CentOS 4.4, or at least upgrade to latest kernel from CentOS 4.4 updates (2.6.9-42.0.2).