There should not be a problem, as long as it has front panel connections.
Take a look on your Packard Bell PC and follow the cable from the front panel, it goes to the motherboard where there is a header for the connectors.
If u will be not sure, post the case link that u want to buy and somebody here will help u to answer yes or no question.
But once u see it, u will understand how it works and do it right by yourself : )