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Building Your First Mining Rig - BA.net

Building Your First Mining Rig

By now you’ve heard about the recent CryptoCurrency mining craze! Maybe, you’re trying to cut yourself a piece of the pie, which is still doable today, even with the spike in mining difficulty across most coins. Whether you’re doing this as a hobby or for profit, you’ll need a powerful computer – a mining rig – to make it worth your while.

Sifting through all of the computer parts can be a daunting task, especially if you’re new to this. So, we’ve laid out below everything you need to know in order to build a successful general purpose mining rig

We will be building this rig with Zcash and Ethereum in mind, as they are currently the most popular cryptocurrencies to start mining.

The Motherboard (MOBO)

The Motherboard is the big flat piece of your computer “guts” that EVERYTHING plugs into. Every part that you choose needs to be compatible with your MOBO, so keep that in mind. The motherboard is going to dictate what kind of CPU you have, how many GPUs you can hold, how much memory you can have, etc. All of your other parts rely on your motherboard, so choose wisely.

The main compatability issue will rise from you MOBO/CPU combo, as the motherboard has to have a matching CPU socket. An easy way to check if your parts are compatible is to use the PC Part Picker tool.

Now, most MOBOs have multiple slots for multiple GPUs. Right now, a standard Mining Rig MOBO will have the capacity for 6 GPUs. However, many GPU companies are starting to add slots for even more GPUs. Check out this one that can hold TWELVE GPUs!

Anyways, we’re going to build a standard 6 GPU rig, so this is a bit of an overkill. So, this MSI Pro Solution Intel Z170A LGA 1151 DDR4 USB 3.1 ATX Motherboard (Z170A SLI Plus) should work perfectly! It has 6 GPU slots, which is exactly what we’re looking for!

Other recommended mobos are Asus Prime Z270, Asus Prime H270 Plus, BIOSTAR TB250-BTC

More motherboard options

Central Processing Unit (CPU)

The CPU in a mining rig isn’t all that important. It is important, but you don’t need a high-end CPU for it. An i7 would be a huge overkill, heck, even an i5 would still probably be a bit much. You don’t need it to be super powerful since it will do one thing and one thing only, mining.

It appears that everyone gravitates towards the Intel Celeron series. They are powerful enough to get the job done, yet inexpensive to help keep the costs of your rig down.

The Intel Celeron G3900 Dual-core (2 Core) 2.80 GHz Processor is the most common CPU found particularly in Ethereum Mining Rigs, but it will also work well for mining just about anything else! It is powerful enough to be very successful in mining, yet it is only $41.00. Definitely a good buy while they’re readily available!

Graphics Processing Unit (GPU)

This is probably the most important part of a mining rig. Since most cryptocurrencies are mined with a GPU, you’ll need a powerful one to yield the highest hashrate possible and therefore earn coin faster. Choosing a GPU can be a daunting task because there are so many with different specs, RAM, chipsets, and a whole lot more that effects your hashing power.

Previously, the AMD RX 580 was king in the realm of Ethereum. It has the highest hashrate for the lowest cost GPU. However, they’ve all been bought up and it is ridiculously difficult to come across them now. You’d most likely have to get your hands on them from a private seller for a gouged price. Outside of the RX 470/480/570/580 realm,

Today NVIDIA reigns supreme! Their GTX 1070, GTX 1070ti, and GTX 1080 have been killing it! They’re not as powerful for mining Ethereum as the RX AMD series, but they are better for equihash (Zcash, Zen, BTG, Monero) they are competitive and generally NVIDIA products hold their value better than AMD. So, if you ever wanted out of the mining game, you could salvage your parts for a decent amount.

There’s two main things that you’ll need to look out for when purchasing a GPU:

  1. GPU RAM
  2. Mining Efficiency


GPU RAM is important because without it, you won’t be able to mine.

Equihash coins (Zcash, ZEN, BTG) can be mined with as litthe as 2G GPU RAM.

Ethereum requires at least 4G GPU RAM. You need enough GPU RAM to at least cover the DAG file size, which is a bit over 3GB for Ethereum, as of this writing. So, you’ll need AT A BARE MINIMUM 4GB of RAM on your GPU to cover it, anything less and you may not be able to mine.

More is better, so if you can afford a GPU with more RAM, GET IT! It will ensure that you are able to keep mining even as DAG Files get bigger (which they continually do). It is recommended to go with a GPU that has atleast 6GB of RAM to allow for the increase and give you some wiggle room, again… more is more!

Mining Efficiency

GPU Efficiency for ETH Ethash

GPU CardHashrate ETH Hashrate per WattPrice MSRPPower WattsPower MaxPrice:HashPrice:Used
Nvidia 1060 6G ETH 21 MH/s 0.28 MH/W$25075 W130 W4.8$100
AMD Radeon RX 570 4G ETH 24 MH/s 0.20 MH/W$200125 W170 W4.20$100
AMD Radeon RX 480 4G ETH 29.5 MH/s 0.22 MH/W - 135 W170 W3.5$120
Nvidia 1070 8G ETH 30 MH/s 0.3 MH/W$350100 W170 W5.0$150
AMD Radeon RX 580 4G ETH 29 MH/s 0.22 MH/W$250130 W170 W4.13$120
AMD Radeon RX 580 8G ETH 29 MH/s 0.22 MH/W$250130 W170 W5.17$150
Nvidia 1070ti ETH 30.5 MH/s 0.28 MH/W$500110 W195 W16.3
AMD Saphire 5800 XT 8 GB ETH 30.0 MH/s 0.24 MH/W$223125 W200 W7.4
Nvidia 1660 Super ETH 21.5 MH/s 0.35 MH/W$38061 W130 W17.7
Nvidia 2060 ETH 21.5 MH/s 0.35 MH/W$38061 W130 W17.7
Nvidia 2070 Super ETH 45 MH/s 0.30 MH/W$550150 W180 W12.20
Nvidia 1080 ETH 33 MH/s 0.25 MH/W$750130 W250 W22.7
Nvidia 1080ti ETH 36.7 MH/s 0.25 MH/W$900145 W320 W24
Nvidia Mining P104 ETH 40.5 MH/s 0.34 MH/W$700120 W250 W17
AMD Radeon Vega ETH 42 MH/s 0.17 MH/W$550250 W320 W5.95$250
Nvidia P102-100 ETH 50 MH/s 0.30 MH/W$900165 W260 W18
AMD 5500 XT 8 GB ETH 22.27 MH/s 0.20 MH/W$220110 W130 W9.8
AMD Saphire 5700 XT 8 GB ETH 55.5 MH/s 0.36 MH/W$511140 W200 W9.9
Antminer E3
Bitmain Asic
ETH 180 MH/s 0.22 MH/W$1550800 W800 W8.60
A10 Asic
ETH 500 MH/s 0.58 MH/W$3500860 W860 W7.00

Multiple GPU Farm Calculator

RAM (Random Access Memory)

At least 4 GB RAM is about all you need. You don’t need a lot of system memory to mine zcash or ethereum effectively. 4GB is about as small as a stick of RAM comes these days, so I recommend just picking up a cheap one as long as it is DDR4 desktop memory.

Power Supply Unit (PSU)

1300W Power Supply Unit should do the trick for most 6 GPU rigs (without nvidia 1080s). You can calculate how many watts you’ll need by looking at the power requirements for each component of your computer and adding them together. No PSU is 100% efficient, so take that calculated number and go with a PSU that has a little bit more.

It is always better to have a PSU that can hold more than you need, than not enough. Too little power and you’ll over work it and could start an electrical fire, which is bad in most opinons.

Look for Gold or Platinum rated (as opposed to silver or bronze). This is the industry standard for rating the efficiency of a computer’s power supply unit (PSU).

Also check the number of molex, 6 pin and 8 pin connector cables. To be able to connect all your GPUs.

Electrical circuit

It is recommended never to go above 80% capacity on an electrical circuit
20amp * 120volts * .8 = 1,920 watts safely

20amp * 240volts * .8 = 3,840 watts safely


To connect more than one GPU to your motherboard you will need Riser PCIe adaptors.

Example Risers at amazon

Molex to 6 Pin Cables

You will need some Molex to 6 Pin power cables, depending on your power supply. Read the specs of your PSU, and order the number of missing cables.

Important: Never use sata to 6 Pin adaptors! They can not carry enough watts to power GPU risers safely.

Example cable at amazon

Case and Power Button

An open air case is recommended due to the heat generated by the GPUs. For up to 3 GPUs you can simply screw your components on a shelf-like piece of wood.

To start your computer you will need a power button like this


You do not need a hard drive. You can boot your mining OS in a 8G pendrive. Use our turnkey free banet nvidia mining OS

Operating System (OS)

It is argued that Linux is best for mining. If you choose Nvidia GPUs you can use the free banet nvidia mining OS. Nvidia will generally be more power efficient than AMD and be optimal for mining equihash coins. Zcash, Zen, BTG, Monero. And 90% or so efficient for ethereum mining.

If you go with AMD GPUs, you could use EthOS $39.99 on linux to optimize your Ethereum and ZCash mining. But keep in mind that AMD gpus are more power hungry, and require GPU BIOS modding to get maximum performance.

Ultimately, it is all up to user preference.

Remote AC Power Outlets aka Smart Plugs

Bottom of the Nice-But-Not-Required build list is a way to remotely power cycle your rig.

The Wemo Insight is preferred because it can function with IFTTT support and monitors watt usage. link

Alternatively, the Etekcity Smart Plugs do not work with IFTTT but are much cheaper. link

A Kill-a-Watt is useful for monitoring wattage use, but doesn't have remote power cycling capabilities. link

Note: Smart plugs are typically rated for no more than 1200-1500W total power.

Alternatively Relay Buttons
A wifi or Ethernet relay board can be used to remotely operate the power or reset buttons on your motherboards amazon

More info. mobo recommendations and mobo bios config settings mobo bios config help

Ethernet Internet or Wifi

Ethernet internet connection is preferred. But wifi can be used, make sure to have usb extender cable, since rigs create a lot of static electricity around them and wifi almost never works in the radius of 0.5-1m. Example for ba.net nvidia mining os amazon


You can make just about any rig into a mining rig. Only a few pieces of hardware really make a difference. The biggest difference maker in the mining world is your choice of GPU.

Today Nvidia has a slight edge in bang for buck. Also in power efficiency. But AMD is close by. And the game is played in the used GPU card market!

We want to make cryptomining available for everyone. It all starts with building your rig, so let’s get building!

More Details

  • Specification List - What Hardware Should I buy ?
  • PSU Options
  • PSU Cables
  • Crypto Glossary

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