However the 500Watt and 650 Watt PSU can start the cube.
The 500Watt the LED stays red.
The 650Watt the LED goes off and it seems to start mining but also after exactly 2 min it reboots.
Ahhhh, sorry I misread that the PSU was shutting off. If the mining is rebooting then it could be a different issue.
Post up the info on your Cube page, your batch file to run the proxy miner, and also what you get when you run "ipconfig"
We should hopefully be able to assist from there