stupid mobo won't come out...

I'm trying to put my emachines mobo into a new case because the PC was too loud as is.  However I can't seem to remove the mobo from the original case?  Does anyone know if it's hard-glued there or if it's made to be stuck there permanently?  My main reason to replace the case is because of the stupid loud PSU and there's too many holes in the case.  I can overlook the holes though if someone knows a small size PSU that's actually quiet.

1) emachines lol
2) No, really, every time I've had to fix / modify / use an emachine it was a shitty nasty experience.  Save up, get a different mobo.

3) Do you know what part is noisy?  You can do a lot to get a quieter machine - underclock the processor, bigger heatsinks, better in/out fans, get a good PSU.  Once you've done all that (which can be expensive) you're down to changing the drives, using anti-vibration stuff, using a really fucking good case.  But all of that is expensive and you don't get much noise reduction.