it depends on the board. The good boards have removeable and replaceble chips in sockets. That just push in and pry out.
The cheap and nasty(not really fair, some very good boards have built in drivers.) ones tend to have the chips soldered to the board. And given how cheap boards are - you might as well replace with a board with sockets.

The beauty of a socket based board is that you can just switch chips round to see if one's bad. :-)