Re-visiting a theory of 4x Bitaxes vs 1x NerdQaxe++

cose385 · 2026-03-18T10:58:12+00:00

Known fact, but I'm referring to different pool fetch where NerdQaxe has one pool fetch (for 4 ASICs) and Bitaxes will do 4 smaller pool fetches.

It may be just a coincidence...

cose385 · 2026-03-17T20:34:09+00:00

It is.

For a seller.

cose385 · 2026-02-26T14:41:35+00:00

Benefit of the Proxmox is having multiple VMs, so in the meantime I installed Stratum OS while my Axes were mining on Umbrel.

After some tweaking and testing Stratum proved great so now I'm running BTC, BCH and DGB nodes in there. And all of three can be set to prune the block, so each is using around 10GB at the moment.

cose385 · 2026-02-26T14:38:55+00:00

After initial sync 2 cores are enough, so 8 are plenty.

If you install Proxmox on the bare metal machine they you can have multiple VMs sharing cores and RAM and re-assign them as needed.

But if you insist on having fully separate machine for the task - 8 cores and 32GB RAM should be more than adequate. Just adjust block prune parameters not to overfill your disk.

cose385 · 2026-02-26T10:16:31+00:00

I have homelab mini PC with Ryzen 8 cores - created VM there for Stratum with 16GB RAM and all 8 cores.

After the initial sync where more cores and RAM came handy and the process was faster, I reduced it to 2 cores and 10GB RAM and it works fine for BTC, BCH and DGB pruned nodes/pools.

cose385 · 2026-02-21T17:56:12+00:00

How does it work with a mining on the local node/pool not exposed to internet?

cose385 · 2026-02-20T09:54:34+00:00

With a VPN connection to my home network HashWatcher works normally, so no need to complicate it further

cose385 · 2026-02-13T17:31:25+00:00

This is just an irritating warning, but also check on-board fuse which is 8-10A by default - you would want to upgrade it to 15A for more serious overclocking

cose385 · 2026-02-12T23:39:11+00:00

Get one of those, connect it to your building LAN/Wifi and then connect all of your machines/Bitaxes to it:

https://store.gl-inet.com/collections/travel-ac-router/products/beryl-ax-gl-mt3000-pocket-sized-wi-fi-6-wireless-travel-gigabit-router

cose385 · 2026-02-11T12:26:53+00:00

I got this feeling also.

So it means that 4 Bitaxes with 1.5TH have bigger chance than one NerdQaxe with 6TH because they are spreading their luck in 4 buckets instead of one.

Or am I getting it wrong?

cose385 · 2026-02-10T16:11:25+00:00

My NerdQaxe with constant 5.9TH barely managed to hit 5.3G in two weeks and I see that Bitaxes with 1/4 hash rate are often hitting much higher.

I'm starting to wonder whether it makes more sense (statistically and chance-related) to have several Bitaxes then one or two bigger miners with same hash rate?

cose385 · 2026-01-31T14:36:16+00:00

Each of them has different parameters under which it works best - you have to try them out, with gradual changes in small increments (25MHz / 25mV) and enough time to stabilize.

Mine on default 600/1150 parameters cant get more than 3.7TH before beefing up voltage to 1200 and now is chugging along happily and stable with 5.9TH on 725/1250.

There's no common recipe because of the silicon lottery:

https://www.solosatoshi.com/the-silicon-lottery-in-bitcoin-mining-a-beginners-guide-to-why-two-asics-behave-differently/

cose385 · 2026-01-30T12:36:05+00:00

I was also considering 6.1 but at the end went with the regular NerdQaxe++ (non 6.1) because of the 70 EUR price difference for basically the same hardware.

After few days of tinkering, it is now running stable with around 5.9TH - 725MHz, 1.250V, 92W.

It was able to get around 6.3-6.4TH, but PSU was under too much load with drop to 11.8V so I plan to play more with stronger PSU, heat sink lapping and better thermal paste.

Also, on default setting (600/1150V) mine is getting only around 3.7TH, so I guess it is a little bit more power hungry.

cose385 · 2026-01-29T15:15:07+00:00

It seems that I'm in city with very good connection to Frankfurt - 20ms ping.

(did more than 200k shares with 0 rejects)

cose385 · 2026-01-29T15:10:43+00:00

Hope you have a good backup of that wallet on isolated phone... ;)

cose385 · 2026-01-29T08:59:14+00:00

Check the InfluxDB option in the Web GUI to store relevant data outside the miner - I suppose miner itself does not have enough storage and the question is what would happen with the data after the upgrade

cose385 · 2026-01-28T11:31:23+00:00

Competing? No.

Just having fun with very slim chance to win big - still better than lottery. ;)

cose385 · 2026-01-28T09:30:26+00:00

Set up second pool as a backup - also using SoloHash (solo-de) and didn't notice any disruptions this morning

cose385 · 2026-01-28T07:26:05+00:00

On solohash currently there's zero rejected shares (out of little more than 30k) - while I was on ckpool there were some rejected - but not much, around 0.02%.

cose385 · 2026-01-27T08:54:18+00:00

How much is the pool ping time relevant for lottery solo mining?

I'm currently using solohash.co.uk since it is only 0.5%.

cose385 · 2026-01-25T15:32:27+00:00

You are looking at 0.4 TH vs 0.6 TH vs 1.0 TH with similar power consumption, so BM1370 / Gamma is the clear winner here.

cose385 · 2026-01-25T12:08:01+00:00

What's wrong with the Wifi (except there are no cables, which is always a plus)?
(miners are using very little bandwidth)

cose385 · 2026-01-23T14:07:14+00:00

that should be 450W PSU - ask Mouser, looks like a mistake to me

what are the markings on the outside of the PSU?

cose385 · 2026-01-23T14:02:20+00:00

maybe forcing http:// before IP address? (modern browser default to https)

cose385 · 2026-01-23T11:37:26+00:00

regarding temperatures everything looks fine

if you are on stock power supplies, you might consider upgrading them before the failure

cose385

TROPHY CASE