^Switch off the PC and switch on instead? Else do some jugaad and get a reset button done - it's not expensive!
CM590 is much better than the 690 in a lot of aspects - lesser plastic, the in-line 5.25" drive bays - you can mount the hard drive cage anywhere from top to bottom etc to mention few of the noteworthy ones. But seems like the metal quality is slightly on the bad side - not much of letdown either.
4k can get you the Antec 300 and perhaps the cheapest of the Lian Li's Lancool - do give a thought to these enclosures as well.