Quote (Duckling @ Apr 28 2021 11:18am)
Guessing the rig needs to be setup outside ? Seems like it’ll shoot my electric bill through the roof
Why would it need to be setup outside? I mean, you need a well ventilated room. Mine is just in my office since I also use it as my gaming setup. If you have a basement that's cold then that's perfect.
My 3090 uses about 350W going full blast, so 24H/day * 0.350KW * 0.09 c/KWH = $0.75/day. The rest of the setup is negligable compared to the GPUs.
Also don't keep it in a case. Keep it open-air for better ventilation.
The biggest impediment to mining is the startup cost. You can get a cheap 3090 from microcenter for about 2k, but they only let you buy one graphics card a month. So you have to pay scalper prices which is about a 50-100% markup. So you're looking at about $10 a day profit on a $3-4k investment, so that's a 400 day payack assuming constant daily profit. And since the GPUs are so power hungry you need a good PSU, probably like gold or platinum efficiency to keep electricity costs down, and you'll need another $300 PSU for every 2 or 3 3090's you get since you don't want to go over 75% utilization so you can maximize life of the PSU. And the motherboards are like $300 each but you can hook 10-15 GPUs up to it, and the motherboards have 3-4 power slots to maintain simultaneous turning on and of.
So for a full GPU rig you're looking at about 3k/gpu, times 10 gpu, plus 3*300 for PSU, plus about 500 for the motherboard, RAM, and processor. So about 32k, to produce about $100 a day in profit.
Not bad if everything stays the same, but if crypto tanks you're fucked.