You'll need a new windows coa, unless you've already upgraded to windows 7. The board may have different pin positions for the case connector that is for the reset, power led, power switch, etc. You should download the board manual and read it before you order the board. Learn the proper leads for connecting to the board from the power supply, and read about the installation options for the ram slots. Many first timers can't get their new board to post, so don't blame the board. If you don't have alot of patience, get someone else to install it for you.