Hello Linux Gurus of the world

We run an old DB on an 2010 DELL server which decided to quit on me today.
It runs RedHat, im unfamiliar with the version, but whatever was fashionable on 2010?

I crossed my fingers, moved the hard drives with the DELL raid card to my Gigabyte PC, and tried to boot.

It actually did boot. But i cant get networking on.
im assuming that the static configuration is referenced to the old MAC address of the old mother board.

How can i have it "re configure" its network services so it works with the onboard NIC card?

im by no means a linux guru, I have done some simple LAMP setups and can follow guides and instructions.

all ideas suggestions and pointers are appreciated.

If it's from 2010, it's likely RHEL v. 5 or possibly v. 6. One of these links may help:

http://www.cyberciti.biz/faq/rhel-ce...configuration/

http://blog.roozbehk.com/post/351568...dd-network-eth