So, I've taken things "a step further": I am now mining my own cryptocurrencies.
2 weeks ago, I offered jokingly to my friends that we should set up a mining rig. One of them came on board and we're sharing the cost of the hardware.
Here's what it looks like:
I ordered most of the parts on Tokopedia which also led me to some troubles with the power supplies. Long story short, it took me a whole day in Mangga Dua, a few motorbike rides to various service centers, all to find out that the batch of power supplies I got is defective. So I bought another pair and will return the defective ones today.
I designed and build the frame myself, this is what it looks like without the gear on:
I don't have many power tools so this also took a couple trips to the tukang las (to cut the metal bits) and tukang kayu (for the wood bits).
Here are the specifications:
CPU: Intel Pentium G4400
Motherboard: Biostart TB250-BTC
GPUs: 6 x Manli GTX 1060 6GB Gallardo
RAM: 4GB DDR4 2400Mhz
SSD: 120GB Kingston M2 SSD
Power Supplies: 2 x 650W
Some more numbers:
Power draw: 720W
Temperature: 68C
Profitability: +/- $17/day at today's rate including electricity cost
Total cost: +/- Rp 37jt
What does it mine?
A bit of everything but no Bitcoin or Ethereum directly.
We joined a pool that mines various coins and we have a software that automatically switches to whichever coin is the most profitable at the time. So it may mine one coin for a couple hours and suddenly switch to another one. We get rewarded in those various coins which are automatically exchanged to a more stable coin like BTC (bitcoin), ETH (ethereum) or LTC (litecoin) which is easier to exchange to USD or IDR.
I've only switched it on for the first time yesterday and so far so good.
Now that it's all working, I need to build an enclosure for it with an exhaust blowing the hot air outside. More pics when this is done.