I got the meter today and I can now measure my energy-intake from the wall.
It's more than i thought; 250 Watt is a lot ( I had estimated 200 ).
I'm paying 0.28 Euro the kWh.
Mining 24 hours at 250 Watt -> 6 kWh.
That's 1,68 Euro/day in electricity.
The payout rate is constantly changing, but the last 4 hours I could watch it fall:
I'm now officially mining at a loss.
I will try some bios roms - I can still bring down the voltage.
I'm not sure if claymore miner will overwrite those settings, though.
The only other way to reduce costs would be better cooling.
I can still do a lot there and a 10 Watt fan could pay off.
I do need risers for that.
That's another 16 Euros a piece.
And I'm only making cents for profit at best ...
Since I'm mining into my Steem Power, I can still hope for a raise in value there.
Without blogging about it, this would be a failed experiment.
The experience is - of course - invaluable, but at this point, I can not recommend it.
The energy costs are just too high ( I expected that, though ).
When the risers arrive, I will put the whole rig into a custom case and try blogging about the process.
This could still be interesting for people, who have already written off their gaming hardware as a loss and want to just mine some coins without a need for high profitability.
If you have energy costs above $0.25/kWh then:
Don't try this at home
You will pay more than you gain :D