VNISH GLOBAL · Answers
How do Power Limit, Preset Switcher and Autotune differ in VNISH?
Power Limit responds to consumption, automatic preset switching chooses the operating profile, and Autotune adjusts individual chips within that profile.
The comparison follows HashCore's firmware guide. It explains the documented controls; their availability depends on your model and firmware build.
| Control | Job | Useful distinction |
|---|---|---|
| Power Limit | Can reduce the preset in response to the configured consumption limit. | Power-based switching in the documented logic requires consumption data from the PSU. |
| Preset Switcher / Auto-Switch Presets | Changes the preset using temperature, fan speed and consumption. | A preset can also run with automatic switching turned off. |
| Autotune | Tunes individual chips within a selected preset. | A preset and its saved tuning results are related, but they are different things. |
Does changing a preset always start a new autotune?
No. In the documented workflow, a previously tuned preset uses its saved results. Switching to a preset that has not been tuned starts tuning. The profile before and after the change, together with the displayed tuning state, helps distinguish these cases.
Does Autotune work in No Preset mode?
The documented No Preset mode uses manual frequency control. Autotune requires a selected preset. Check the operating mode before following a tuning walkthrough.
What about Z15 Pro 1.3.7?
VNISH GLOBAL 1.3.7 for Z15 Pro has manual frequency and voltage control and does not include full autotune. The general autotune workflow above does not apply to that release.
Find the exact model and control board in the VNISH GLOBAL firmware catalog and read the information for that build.