I returned my PC to non-overclocked state and this has reduced power consumption a little bit but with GTX 760 it's costing more to run that it is earning. Idle power consumption is 150-160W, when mining 260-270W costing about £0.71 per day to run and only earning $0.35-0.45. I have now bought RX480- 8 GB, this should improve things considerably. Only 1 for now as I am not sure if my 550W PSU will handle 2. I also noticed somebody selling modded BIOS for RX cards on e-bay for faster mining, is it something to consider or better to stick to stock to retain warranty. Updating motherboard, CPU &RAM would probably bring idle power consumption down by 100W.
I also tried it on my home HP Mini Server with Xeon E31265L CPU and while it does not generate much it consumes a lot less power. It is already running 24/7 and costing about £4 per month to run with power consumption around 50W, while mining power usage goes up to 70-75W costing only £2 per month extra. It has around 40% CPU usage, not sure why it's not using more CPU power, maybe memory is too slow. It's earning about $0.27 per day. It does not appear to affect anything else running on server. So it will cost about £6 per month to run and generate about the same but as it's running already without mining and costing £4 per month I am actually £4 better off. Nothing to get excited about but at least it's not loosing money.
