How to build an Ethereum mining Rig – Beginners Guide

So you want to build an ethereum mining rig, then you are in the right place. This guide will help you to build a mining rig for yourself. Don’t worry if you are new all absolute beginner, there are no prerequisite needed for building ethereum mining rig. 

This guide is divided into two section each one is focusing on one particular task.

       1. Hardware

      2. Putting it together.


A typical mining rig will have

     – Motherboard

    – Processor

    – Memory

    – Power supply

    – GPU

    – Boot device

    – Case



Selecting motherboard is fairly easy task any motherboard with enough PCIe slots is suitable for mining. More number of PCIe slots more number of GPU’s can accommodate.

I would recommend  Asrock H81Pro, as it is one of the most recommended motherboard in the mining community. The H81 not only utilizes its full-width X16 PCIe slots but also the multiple available PCIE Express X1 slots with the help of extenders.

Asrock has made a name in the mining community by making their BTC Branded motherboard made and especially for GPU mining rig.

Be sure the board you choose has 6 PCIe slots.

There are some honorable mentions they might require a little BIOS tweak though!

1. Asrock R2.0

2. Biostar TB250-BTC

3. ASRock Z270M Extreme4

4. Biostar TB85


6. MSI Z170A

You can also use an old piece of hardware sitting idle and save few bucks on the motherboard it requires only a few BIOS tweak and you are good to go.

You can buy Motherboard here

CPU or Processor

In a typical GPU mining rig, the GPUs are the elements that do all the work and the CPU is idle most of the time. So spending the bare minimum on CPU will do.

Celeron G1840 is a great CPU which comes cheap than most CPU. Asrock series motherboard comes with LGA 1150 socket Celeron G1840 is a good option to consider for other motherboards you have to consider the type of the sockets before buying a processor.

You can buy Processor here

Memory (RAM)

A 4gb memory sticks are more than enough. If you are planning to run a Linux than 2GB or even 1gb memory will sufficient. On the other hands, windows require bit more memory So I would recommend you to go with 4GB memory.

You can buy memory here


A mining rig would require a memory device for store the OS and the software for mining. Harddrive will also store the blockchain if you are mining solo i.e. without mining pool, which is not recommended for beginners.

If you are mining using mining pool the memory usage will be low for blockchain storage. A typical 120GB SSD (solid state drive similar to harddrive but without moving bits which can break) will sufficient if you are mining with mining pool.

If you are planning on running Linux you can also go with 60gb SSD, but need to use claymore miner instead of stock ethminer which doesn’t write ethereum DAG file on disk.

Overall I will recommend you to go with 120GB SSD as it is scalable. It won’t be a problem if you run Windows or Linux.

You can buy SSD here.

PSU (power supply unit)

A PSU is used to provide power supply to the rig by converting AC to DC. Buying a good PSU is extremely important and efficient PSU will provide a power supply with good efficiency helping to keep low the electricity cost.

When choosing a PSU, calculate the power total number of the GPU will draw and buy a PSU with a bit more capacity than the total load.

Consider a 6x Rx470 GPU rig will draw around 800W-900W depending upon the optimization so a 1200W PSU will be on optimal choice.

If you plan on building a rig with  3-4 GPUs than the 860W model will do fine.

You can buy PSU here


A Riser is used to connect the GPU to the motherboard now there is a lot of confusing about the different variants of riser i.e. power, unpowered, USB style, SATA to Molex to name few.

First, we will understand what are powered and unpowered risers. A riser is powered if it provides power to the GPU from the PSU bypassing the motherboard i.e. the GPU gets power directly from the PSU but in the case of unpowered risers, the GPU connected to PCIe slots of motherboard draw power from the motherboard.

Now a typical motherboard is designed to give a power output of approximate 150W. So you can use unpowered Risers considering the consumption of GPUs its 2 GPU of 75W.

But you need to use powered risers for more than 2 GPUs or the better way you can use all powered Risers and remember, use only two risers per P50 plug because PSU performs efficiently when they are not running at their maximum rated load.

You can buy Risers Here



Selecting GPU is one of the most important part while setting up your mining rig. If you are thinking that the most powerful GPU will give you more profit than wait there are many factors to be considered like Cost, Hash Rate, Electricity consumption, ROI, efficiency, etc.

Let’s take an example for better understanding. So you have an option to choose one from the two GPU given. First GPU has a hash rate of 40mh/s with an electricity consumption of 500W and the second one has a hash rate of 36mh/s with an electricity consumption of 200W.

So which will you choose? Obviously! The second one.

So be more selective while selecting GPU as it is the most important thing in Mining Rig.

Some important factors to be considered while selecting GPU


Electricity consumption

Mining Power (Hash Rate)

ROI (Return on Investment)


If you ask me which is one of the most efficient GPU for Etherum mining I will suggest you, go with Sapphire RX 480X 4gb as it one of most efficient GPU available for mining Ethereum. But the bad thinks about this GPU is most of the time it is out of stock on Amazon and other sites as

But the bad thinks about this GPU is most of the time it is out of stock on Amazon and other sites. I think because of high demand of this GPU in mining community. If you are lucky enough to find it then go ahead buy it, if not no worries there any many options available to this GPU.

Sapphire RX 570X 4gb

EVGA GeForce GTX 1070

You can detailed mining hardware comparison here


Putting it together

Connecting the rig parts is fairly easy process

  1. Connect the processor to the motherboard.
  2. Connect the riser to GPU and PCIE slots, taking the power riser to the PSU.
  3. Attach the memory to the memory slot on motherboard
  4. SSD to the motherboard
  5. A connection from the power supply.

You will also require a Monitor, Case, and OS which you can buy here

So have had successfully built you ethereum mining rig.

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