I used to use a DPS-800GBA and a breakout board which I paid a total of $35 for with FS and it outputs 1000W on 220V and is platinum rated IIRC and comes with four 6-pin connectors. The PSU was also not loud at all- definitely wasn't the loudest part of my mine. Some of the higher-power PSUs are loud, but not all of them are. If you can solder at all, it's possible to just solder on the 6pin connectors by reading pinouts for a specific server PSU and save money by skipping a breakout board.