Output: +3.3V@15A, +5V@40A, +12V@19A, -5V@0.6A, -12V@0.6A, +5VSB@2A
Those are your rails, as you can see your 12v rail has an output of 19amps, which really is borderline in my opinion. When running an Athlon 64, it is recommended that your 12v rail be at least 18amps, but preferably 24amps. This is especially true since you have a ton of energy loading hardware hooked up to your computer.
If it works fine now though, that's good to hear, but still, 19amps is really pushing it.