Wow 60 Watts? what frequency are you running at?
According to SideHack's power chart, 60 watts is 275MHz
100MHz (44GH) 660mV/node 2.64V total; 12V 1.4A for 16.8W/0.38J/GH
125MHz (55GH) 660mV/node 2.64V total; 12V 1.7A for 20.4W/0.37J/GH
150MHz (66GH) 660mV/node 2.64V total; 12V 2.0A for 24.0W/0.36J/GH
175MHz (77GH) 693mV/node 2.77V total; 12V 2.5A for 30.0W/0.39J/GH
200MHz (88GH) 715mV/node 2.86V total; 12V 3.1A for 37.2W/0.42J/GH
225MHz (99GH) 755mV/node 3.02V total; 12V 3.8A for 45.6W/0.46J/GH
250MHz (110GH) 770mV/node 3.08V total; 12V 4.4A for 52.8W/0.48J/GH
275MHz (121GH) 770mV/node 3.08V total; 12V 4.9A for 58.8W/0.49J/GH
Ill pick up a P3 Killawatt on my way home from work tonight and see what I'm pulling per pod.
But even so, then just jump to a 750Watt, its still the same common slot power supply, still under $40
https://www.amazon.com/HP-599383-001-Common-Platinum-Supply/dp/B00719064I/I've used the 1200Watt and Sidehacks break out board for GPU builds and AntMiners, its a solid reliable design. (those are just crazy expensive right now)