PSU Wattage Monitoring Software

Solution
The Corsair AXi power supplies include a port to allow monitoring (plugs into a USB port on the mother board) using their "Corsair Link" software or, if you have a UPS that supports it, you can monitor the AC input to the power supply and multiply by the PS's efficiency to estimate the output.

Other than that, I don't know of anyway to do real time monitoring.
The Corsair AXi power supplies include a port to allow monitoring (plugs into a USB port on the mother board) using their "Corsair Link" software or, if you have a UPS that supports it, you can monitor the AC input to the power supply and multiply by the PS's efficiency to estimate the output.

Other than that, I don't know of anyway to do real time monitoring.
 
Solution