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How To Build a GPU Mining Rig (Step-by-Step Guide)

A Step-by-Step Guide for Building Your Own GPU Mining Rig

With Bitcoin dominated by ASIC powered mining rigs, it doesn’t make sense to mine BTC with a GPU. However, GPU mining is an excellent way to mine and earn cryptocurrencies, such as Ethereum and Monero.

And building your own rig from scratch isn't as difficult as it looks, as long as you get all the right pieces.

The cost of your rig will depend on how many GPU you want your rig to hold, but usually if you get a frame that holds up to 6 GPUs, it should cost around $3500 to set up. With all parts, I recommend buying the best you can afford. Remember, you’re doing this to make as much cryptocurrency as possible for as long as possible, so only buy the best.

Things you will need:

· GPUs (Graphics Cards)

· Mining Rig Frame

· Power Supply

· Motherboard



· Thermal Paste

· PCIe Risers (1 for each GPU you use)

· Hard Drive

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Putting Your Mining Rig Together

Your mining rig needs assembling, but it’s quite easy if you follow the instructions, and once it’s assembled you need to fix your other pieces to it.

First step is to fix the motherboard to the rig frame. It might be a good idea not to screw it down fully just yet, so you can manoeuvre the motherboard if needed, and later you can screw it down properly.

Once that’s done, get your power supply and screw it to the rig frame next to the motherboard. It’s important not to buy a cheap power supply, as you’ll probably be mining for years. So I recommend getting 1200W with platinum connectors, which will ensure 6 GPUs run efficiently through it.

At this stage you should have something looking like the image below:

*Note each rig will be different, but as long as you have the motherboard and the power supply, set up in the correct places, you will have something like the image.

Then you want to plug the CPU pad into the motherboard. You won’t need a very powerful CPU as all mining ill be run through the GPU, so something like an Intel Core i3-9100 will be sufficient.

Be careful handling the CPU, because if you damage the pins, it will irreparably damage it. Anyway, just slot the CPU onto the motherboard. It will slot into place, and then lock it in with the lever.

Your CPU might come with its own cooler pad, but I’d recommend getting some good thermal paste and place a bit on the back of the CPU and on the CPU cooler fan that will sit on top of the CPU.

Then with your thermal paste on the bottom side of the cooler, and some on top of the CPU, slot the cooler on the CPU, it will fit on perfectly, and then screw it down and tighten it in place with the levers to keep it there.

The image above is how your CPU should look like with the fan on top of the card. Plug in your CPU fan with the cable shown into your motherboard. There will be a connection on your motherboard that is for 'CPU Fan', so just fix it in there.

Then you want to slot the RAM into the motherboard. Refer to your RAM owner’s manual exactly which slot it should go in, as each RAM manufacturer is slightly different. No worries, there will be a place for your RAM.

When slotting the RAM in, make sure you line up the indent of the RAM with that on the motherboard, push the RAM down and click it firmly into place, with the white clips on each end of the RAM (as in the image above).

Make sure all your fan wires are daisy chained together in the PSU, so they all plug into the fan power point on the motherboard.

You can use a USB or a hard drive for storing the mining protocol, so it’s up to you. If you work with a mining pool (recommended), you will need about 60GB capacity, so it’s not too bad.

Once all that is in place you’ll need to wire it all up with the power supply unit.

All power slots are labelled and each have a different connection, so it’s pretty fool proof. Make sure you plug all your cables in at both ends. You will have a few different wires, but try and keep them neat so it’s easier to navigate your way around your mining rig.

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Your GPUs are going to need PCIe risers to ensure it can all power up equally. Make sure you don’t by cheap stuff as the very best will ensure the most productive mining for years to come.

The PCIe riser is going to allow us to use multiple GPUs, so make sure you have a PCIe riser for each GPU you want to run on your motherboard.

The PCI riser cable will slot into the PCI unit, and the other end of the cable will go into the motherboard.

Then connect your PCIe riser to your GPU, and do this with all your PCIe risers and GPUs. Plug your SATA cable into the PCIe unit. This will give the PCIe power and ensure the GPU doesn’t try to draw all the power itself.

Then connect each PCIe unit to your GPUs. Looking at the image above, slip the white clamp on the PCIe riser back back, line up the connecting parts of each device, making sure the exact parts match and then slot them together. Afterwards slip the white clamp back to make sure it’s firmly held in place.

Then mount your GPU onto your mining frame and screw it on. There’s dedicated space for each GPU, and depending on how many you use, screw them all in place.

Once the GPUs are screwed on, you want to wire the PCIe SATA cables into the power supply cables. They can only fit in one way, so make sure you do this for each cable, ensuring they’re all in firmly.

Then plug PCIe cables into the GPUs as in the image below.

Then plug the fans into the power supply, and the rig is then set up ready to go. Plug your rig into the wall, switch it on and you should have a fully working GPU mining rig.

You will be able to mine a number of different cryptocurrencies with your GPU, so it depends which one you prefer. Personally, I like to mine Ethereum and Monero, but whichever you choose you’ll need to download the software, and connect to the network.

I hope this guide helps you in your endeavor to build your own GPU mining rig. There are many good videos, including this one, where I got some good clear screenshots from, if you need extra help.

All equipment can be bought form the MinedHash Mining and Gaming Hardware Store. Please take a look.

Feel free to leave a comment, and I wish you well in your new mining hobby.