For increasing the JBoss server start-up time in eclipse:-
1.Click the Servers tab. Its located at the lower area of Eclipse workarea. Just beside Properties tab or near the Console tab.
2.Then double click the server(don't right click) which you are trying to start. It will open a dialog box. Expand the “Timeouts”. There you can find the option to increase the server start time. The default value is 50 seconds you can change it to an appropriate value(it is highlighted by green rectangle in image
I hope this solve your server time out issue.
:)
