Analysts are predicting an imminent market reversal. This is a good time for crypto miners to get into business. The easiest and inexpensive way is to build a mining farm with 6 graphics cards. In February 2023, a rig with GPU of the middle price segment will cost 150-210 thousand rubles. You can connect the farm yourself. For this, no special knowledge is needed.
What is needed for mining on 6 video cards
Mining cryptocurrencies is a business that requires high capacities. The more money invested in equipment, the higher the income. To start a business, you need to set a budget. Beginners can assemble a rig of 6 video cards and install it at home. To do this, you will need accessories:
- Power supply. This component ensures the stability of the power supply. Rig consumes 5-8 kWh. It is better to buy a block with a power reserve of 20-30%. You can take server models or connect in parallel 2-3 ordinary ones (8 thousand rubles).
- Video cards. You need to buy at least 6 pieces. The simplest model (Nvidia 3060) in February 2023 sell for 25 thousand rubles.
- CPU. In mining on graphic adapters, the processor does not perform calculations. Therefore, you can take any model compatible with the motherboard (15-18 thousand rubles).
- RAM. Directly for mining RAM is not required. But it affects the performance of the Rig. You can take a simple version of 4 GB (3-4 thousand rubles).
- Motherboard. You need to choose a central circuit with at least 6 PCIe ports (20 thousand rubles).
- Connectors for connecting cards to the motherboard. You need 6-8 pieces. Each costs 300-400 rubles.
- Hard disk. This element is not involved in the mining of cryptocurrency, but the speed of reading and writing data depends on the startup and shutdown of the installation. Therefore, it is better to take an SSD, if it does not hit the budget hard. You need a volume of at least 120 GB. The price – from 850 rubles.
- Case. It is better to take an open one for good cooling. You can buy an inexpensive (used or new) or build it yourself. Miners make a case of wooden slats (500-900 rubles) or metal profile (1-2 thousand rubles).
- Cooler. The service life of the miner depends on the quality of cooling. An inexpensive option is to buy 4-6 fans. It will cost 8-12 thousand rubles.
In the end, the home farm on video cards will come out to 190-210 thousand rubles. The equipment should be installed in a ventilated room at a distance of 10 cm from the wall.
How to assemble a mining farm on 6 video cards
First you need to make a business plan, choose a coin and calculate the expected income. A mining farm on video cards consumes at least 5-8 kWh. Therefore, it is better to replace the old wiring or put power cables. After that, you can start assembling the rig. Special knowledge will not be required, but it is necessary to understand how the computer is arranged. Instructions for assembling a mining farm:
- Install the motherboard in the case.
- Connect the CPU and RAM to it.
- To power the hard disk to bring 2 wires – one from the central board, the other from the PSU.
- Connect the first video card. GPU should be inserted into the largest PCI Express x16 slot of the motherboard. Next, you need to supply power from the unit to the GPU. If the GPU power consumption is less than 250 W, you can use one double PCIe cable. If more – you will need to bring 2 wires on different sides of the card.
- Connect raisers (adapters) to the slots of the central circuit and insert the other GPUs into them. Power them from the unit in the same way.
- Connect the PSU to the mains.
- Connect the coolers.
The mining farm for 6 graphics cards is assembled. To turn it on, you need to turn the toggle switch on the power supply unit to the ON position and find the +PLED and +PWRBIN inscriptions on the motherboard. Next, you need to take a scissors (or other metal object) and clamp the 2 outermost needles. After 10-30 seconds the rig will start working. It can be understood by the noise of the power supply and coolers.
If desired, you can connect a monitor. It is connected to the first card (without the riser).
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Schematic diagram of the farm
Rig is a compactly assembled computer with 6 video adapters in an open case for better cooling. Schemes of mining farms for 6 cards can be found in thematic blogs or forums.
The case has these features:
- There are holes for installing cards at a distance of 10-15 cm from each other. GPU is connected to the central circuit by raisers.
- At the bottom there is a platform for attaching the motherboard with a power supply.
- There are legs that raise the case above the floor for better cooling.
Payback of the farm
In the mining calculator you can calculate the expected income. You need to enter the name of the model and the number of cards or hash rate of the crypto farm. The service calculates the value based on current data – the complexity of the blockchain and the cryptocurrency exchange rate.
In 2023, only owners of large capacities can mine alone. Ordinary users connect to pools to receive stable payments. For this, they give services 1-3% of the profit.
After the transition of Efirium to PoS, the Ravencoin coin is popular. On a Rig with 6 Nvidia 3060 video cards you can earn $2.1 per day (excluding power charges). The payback will be 3-5 years. Pools for Ravencoin with the highest hash rate can be seen in the table.
| Platform | Hashrate |
|---|---|
Possible difficulties
After assembly, you need to configure the equipment and connect to the pool. The process of crypto mining is automatic. Miners only need to clean the coolers from dust and monitor the work.
Beginners may encounter difficulties in configuring the GPU:
- Low-power power supplies. The technique works in a 24/7 mode. Under such a load, the PSU gives out less power. Cheap elements have an efficiency of 50-60%, while server elements have an efficiency of 80%. Therefore, you need to take a power supply with a power reserve.
- Defective connectors. Due to poor connection, graphics adapters work with errors or fall off in the process of mining. Users receive notifications about failures. To avoid the problem, you need to take adapters from reliable manufacturers (Molex) and cables with a large cross-section. However, a part of raisers may turn out to be defective. That’s why you need to buy with a reserve (30-40%).
- Unstable GPU operation. If the video card constantly crashes or gives errors, you need to check the assembly. Beginners often confuse the power connectors to the GPU.
- Hardware compatibility problems. If a miner uses 2 or more PSUs from different manufacturers, you need to connect the video card and the corresponding raiser to one device. It is not allowed to supply the motherboard with power from different adapters. This is a frequent cause of burnout of electronic elements of the board.
Summary
The past year of 2022 was hard for miners. The crypto market lost more than 70% of its value, and the most mined coin (ETH) switched to Proof-of-Stake. However, altcoin mining continues to be profitable.
In February 2023, a home crypto farm for 6 video cards of average price (15-30 thousand RUB) brings $2-3.
Experts talk about the end of the downtrend. If this is true, the profitability of mining will grow. Mining is automatic and does not require a lot of time for maintenance, but the initial costs are high. You can invest only free money, so that you do not have to urgently sell off equipment in case of force majeure.
You also need to carefully choose coins for mining. If the investment climate does not improve in the near future, some cryptocurrencies may disappear.
Frequently Asked Questions
✨ Which GPUs should I buy – new or used?
It is not always necessary to save money on components. On the secondary market, video adapters with a small remaining resource are often sold. They will fail faster than they can recoup their cost.
📢 What coins can be mined on video cards?
Bitcoin has long been mined on asics because of the high complexity of the blockchain. Altcoins – Ravencoin, Ethereum Classic, Horizen and others – are mined on GPUs.
📌 What is a mining pool?
It is a service that divides the task of finding a hash into parts and distributes among participants. Once a block is found, users are rewarded in proportion to the hashes invested.
🔥 Why overclock GPUs?
To keep your business profitable, you need to increase the performance of your machines. The only way to do this without investing is to overclock GPUs.
⚡ How many cards can I run on one computer?
The limit is set at 8 GPUs. If more than 6 cards are connected to the same motherboard, the program may not work properly.
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Author: Saifedean Ammous, an expert in cryptocurrency economics.
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