I’m currently testing Guardian in MinerWatch with my Bitaxe Gamma 601, and so far the results have been pleasantly surprising.

In this test, the maximum temperature is set to 65°C.

Guardian will enter "Hold" at 62°C, keeping the current stable operating values instead of continuing to push higher. This leaves a 3°C safety margin for temperature fluctuations and gives Guardian room to react and step down if necessary before reaching the configured limit.

The screenshot shows AxeOS and its hashrate graph on the left, with the Guardian status and configuration on the right.

What I like so far is that Guardian is not simply chasing the highest possible setting. It is trying to find and maintain a stable balance between hashrate and temperature.

It is still being tested, so I’m collecting longer runs and observing how it behaves under different conditions.

P.S.I know that 62–65°C may be considered warm by some users. This was an intentional stress test to explore Guardian’s behaviour near the configured limit, especially since daytime temperatures here in Italy are already above 30°C. Under normal conditions, I keep my Gamma’s ASIC temperature below 60°C.

For those tuning Bitaxe miners: how much headroom do you normally leave below your maximum chip temperature?

MinerWatch:  
[https://github.com/imlenti/MinerWatch](https://github.com/imlenti/MinerWatch)

Umbrel install:  
[https://github.com/imlenti/minerwatch-app-store](https://github.com/imlenti/minerwatch-app-store)

⚠️ Disclaimer: Guardian is an experimental advanced feature that can automatically change your miner’s frequency and, if voltage co-tuning is enabled, its core voltage. Use it at your own risk and keep the miner nearby and under direct supervision during initial tests. Monitor temperatures, power consumption and hardware behaviour closely. Guardian does not replace AxeOS protections or the miner’s built-in thermal watchdog. You are solely responsible for the limits you configure and for any resulting damage, instability or data loss.

MinerWatch Guardian is behaving better than I expected in my thermal tests