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Tutorial

How to set up a Nerdaxe: step-by-step guide

By Lukas Henning · 26. July 2026 · 8 min read

The Nerdaxe line is the display family among open-source miners: a large 1.9" TFT shows hashrate, temperature and shares right on the device. That makes setup noticeably more comfortable than on a Bitaxe in one respect – you do not have to hunt for the IP address in your router. In exchange there is an important detail around the power supply you must know.

This guide covers the Nerdaxe Gamma, Nerdaxe Gaia, NerdQaxe ++, NerdOctaxe and NerdOctaxe Hydro. Got a Bitaxe? Then use the Bitaxe guide.

What you need

  • The miner and only the included power supply.
  • A 2.4 GHz WiFi network – AxeOS does not work on a pure 5 GHz network.
  • Your own on-chain Bitcoin address (starts with bc1q).
  • A phone or laptop for setup.
Important: it must be an on-chain address. A Lightning address does not work – a found block is paid to an ordinary Bitcoin address.

1. The right power supply – where most mistakes happen

Unlike a Bitaxe, the Nerdaxe Gamma is not powered over USB-C but through a barrel jack (2.5/5.5 mm) with 5V / 6A (30 W). The larger models need much more: the NerdQaxe ++ with four ASICs and the NerdOctaxe with eight ASICs sit at around 75 and over 200 watts respectively, and some use different connectors (XT30/XT60) instead of a barrel jack.

Never plug a 12V supply into a Nerdaxe Gamma. The device is designed for 5V – a higher voltage destroys the electronics. Always use exactly the power supply that came with your device, and never one from another model. If you are unsure which supply belongs to your device, just ask us and we will check for you.

Place the miner so air can circulate freely. With the NerdQaxe and NerdOctaxe you need more clearance front and back than with a single Bitaxe – they move considerably more air. After plugging in, display and fan usually start within one to two seconds.

2. Join the setup WiFi

On first boot the miner creates its own WiFi network. Open the WiFi list on your phone or laptop – a network called NERDAXE_XXXX appears, where the last characters differ per device. Connect to it. The device also shows this name on its display.

A “no internet” warning is normal here – you are connected directly to the miner, not to your router.

3. Open the setup page and enter your WiFi

Visit http://192.168.4.1 in your browser. Select your own 2.4 GHz network, enter the password and save. The miner reboots and joins your home network.

WiFi not found? AxeOS supports 2.4 GHz only. If your router bundles both bands under one name, enable 2.4 GHz separately or create a 2.4 GHz guest network.

4. Read the IP address off the display

And here is the convenience advantage of the Nerdaxe line: after the restart the display shows the new IP address on your network, for example 192.168.20.234. So there is no need to dig through your router overview. Open that IP in your browser – that is your AxeOS dashboard.

Tip: if the display faces awkwardly, you can rotate it via the flip-screen setting under Settings. It is also worth assigning a static IP in your router so the dashboard always stays at the same address.

5. Enter pool and Bitcoin address

Now you define where a found block gets paid out. Open the pool settings in the dashboard and fill in:

  • Host: your pool’s address, e.g. public-pool.io or eusolo.ckpool.org
  • Port: the matching port, e.g. 3333
  • Stratum User: your own on-chain Bitcoin address (bc1q…)
  • Password: whatever the pool requires, usually just x
  • Worker (optional): a name after a dot, e.g. .worker1 – handy if you want to tell several devices apart

Which pool suits you is covered in the solo pool comparison, including endpoints, fees and measured starting difficulty. One note: with a high starting difficulty you will see no shares for a while even though everything is correct.

Paste the address, never type it. After pasting, check the first and last four characters. A typo can mean a found block goes nowhere.

6. Check that everything works – right on the display

After saving, the miner connects to the pool. The display now shows everything important without opening a browser:

  • Accepted shares: the decisive number – it must rise. The first share can take a few minutes.
  • Hashrate: should roughly match the datasheet and fluctuate by a few percent.
  • Temperature: staying below roughly 70 °C is healthy.
  • Best difficulty: your best hit so far – this value grows over weeks.

If something does not work

  • No NERDAXE_XXXX network visible: unplug, wait 10 seconds, boot again.
  • Display and fan stay dark: check the power supply and barrel jack – is the plug fully seated?
  • 192.168.4.1 does not load: check you are on the NERDAXE WiFi; turn mobile data off briefly.
  • Will not join your home WiFi: check the 2.4 GHz band, re-enter the password.
  • No shares after 15 minutes: check host, port and Bitcoin address for typos – and that it really is an on-chain address.
  • Reboots under load: almost always the power supply, see step 1.

More symptoms are listed in the troubleshooting guide – the advice applies to all AxeOS devices. If you get stuck, write to us.

And then?

Let the miner run on factory settings for a few days first. For more efficiency, the AxeOS tuning guide helps next. Firmware updates are easiest through our firmware flasher – pick your model and the matching variant is loaded automatically.

Written by

Lukas Henning · Mining-Redakteur & Hardware-Experte

Lukas beschäftigt sich seit Jahren mit Bitcoin-Mining und betreibt mehrere Open-Source-Miner wie Bitaxe und NerdQaxe im eigenen Zuhause. Für Open Source Miners testet er Hardware, dokumentiert Setups und übersetzt Mining-Technik in verständliche Anleitungen – praxisnah, ehrlich und ohne Hype.

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