you should leave headroom on all rails? 25-30% is a good idea... so when it says 1A... you should really only try to power 750mA of modules... this is to allow for inaccuracies in stated power consumption and higher inrush requirements (more power than stated needed on power up) of digital modules...
you're over on the -12v rail by nearly 15%
this may cause all sorts of issues - primarily not powering on properly... ie it won't work
this case is undepowered for it's size... especially when trying to power a lot of digital modules, it's probably fine when filled with mostly lower power drawing analog modules
"some of the best base-level info to remember can be found in Jim's sigfile" @Lugia
Utility modules are the dull polish that makes the shiny modules actually shine!!!
sound sources < sound modifiers < modulation sources < utilities