19 March, 2019 seen 468I originally built this mining rig back in December 2017 (during the golden days of crypto), I've unplugged this rig…
Welcome to the last post of 2017, and no surprise but today I will speak about increased Ethereum (and Siacoin) mining profitability by overclocking GPU cards.
Those of you following my blog lately already know - in December I decided to build 12 GPU mining rig and ordered goodies from Amazon. In total spending about $1,147. The total investment right now covers just the core minimum - motherboard, power supply, PCI risers, RAM, processor and just 2 graphics cards.
At the start, I ordered just one graphics card from Amazon, but while still waiting for equipment to arrive I decided to set up a test environment at one of our office spare computers and installed a cheap Radeon RX 560 card.
The first result with RX 560 card gave me about $0.98 profit daily, see: I'm Making $0.98 Per Day By Mining Ethereum and Siacoin, and I want MORE!
I was pretty happy with results I got from this card, though felt kind of surprised seeing hashing power just about 10 MH/s - it didn't sound good (as I have read that others are getting about 14 MH/s out of this card). Anyhow, as I was (and still am) new to mining, I decided to leave it as it is, not touching clocks, memory size e.t.c.
Now, I what I was looking for was a decent about 22.5 MH/s hashing power from the EVGA 1060 GTX 6 GB card, but felt very poor seeing just 14MH/s out of the box - I was able to increase daily profit from about a dollar to two and a half dollars, but this time it seemed wrong, see: I'm Making $2.44 Per Day By Dual Mining Ethereum and Siacoin, and I'm NOT HAPPY YET!
Both cards combined gave me really modest 24.5 MH/s hashing power (instead of 36 MH/s). I left mining rig to work for a couple of days, meanwhile watching a dozen of YouTube videos, reading countless forum topics on overclocking. And finally yesterday I applied my newly generated knowledge and was able to increase total hashing power to about 29-30MH/s
|Hashing Power||Mined Coins||Exchange Rates||Earnings|
|GPU||ETH||SC||Invested||ETH||SC||ETH||SC||ETH||SC||Total||How many days|
Now, there are few things I should mention.
- Currency exchange rates - since my previous test price for ETH has dipped from about $770 to $704
- Despite ETH has lost some value against USD in the past couple of days, the total income has increased.
- I learned that I could get more hashing power with single coin mining, instead of dual coin mining, and the results were actually quite satisfactory, from both cards I was getting about 31 MH/s single mining ETH only.
- For some reason overclocking worked only for GTX 1060 card, RX 560 was not affected at all, probably the reason it is so - I'm running mixed AMD + NVIDIA rig.
From the positive I should add, that the total ROI has decreased from 468 days to 430 days - a very nice 38 day gain with simple overclocking.
Now, the ROI and ETH exchange rates are the things that worry me the most (now) - to be in the safe side I would love to see ROI in 365 days or better 10 months.
With current mining power, that would ask ETH to be valued at $836 to get investment back in 365 days or about $1,025 for ROI in 10 months.
Now, I don't dare to say it loud, but OK, I will say - I believe Ethereum reaching $2,000 by the end of 2018.