VNISH is custom firmware for ASIC miners that offers more features than standard software. This firmware is used to boost miner performance and improve energy efficiency.
VNISH increases hashrate by adjusting ASIC chip clock rates and selecting optimal voltage. It also helps reduce power consumption per unit of hashrate, which is especially important when electricity costs are high.
VNISH helps miners operate more efficiently: producing more hashrate or consuming less power while maintaining stable operation. Furthermore, the firmware offers many additional features for convenient ASIC miner management.
Custom firmware is alternative software for ASIC miners that replaces the factory firmware and opens up more options for customizing the hardware.
Vnish is such a firmware: it transforms a standard ASIC miner into a more productive and energy-efficient device with advanced mining management capabilities.
Custom firmware is used to get more out of an ASIC miner than the manufacturer's standard software. It can be used to increase the hashrate, improve energy efficiency, adjust the equipment's operating mode, and make mining more stable.
Vnish firmware is one such solution: it helps unlock the ASIC miner's potential, enabling autotuning, pre-built profiles, precise frequency and voltage adjustments, and additional tools for convenient miner management.
The factory firmware provides basic functionality for ASIC miners. Vnish is installed when more control over performance, power consumption, and hardware stability is needed.
Automatic frequency tuning. AutoTune analyzes chip performance and selects appropriate frequency and voltage parameters.
Voltage adjustment. Vnish helps you select an operating mode based on the miner's hashrate, power consumption, and stability.
Fan control. The firmware provides access to cooling settings, target temperature, and fan speed limits.
Improved mining efficiency. The user can select profiles, use Power Limit, and automatic mode switching.
Remote administration. The web interface allows you to monitor hashrate, temperature, errors, pools, and consumption, and the Hashcore Toolkit makes it easy to work with multiple miners.
VNISH has been in development for over 8 years and is used by a significant portion of the ASIC mining market.
Vnish allows you to increase your ASIC miner's hashrate by fine-tuning its frequencies, voltages, and operating profiles. Instead of relying on standard factory settings, users can select the appropriate performance mode and gradually unlock the hardware's potential. More details
The firmware supports AutoTune, which analyzes chip performance and helps select optimal parameters for stable mining. This allows the miner to operate more efficiently, achieve a higher hash rate, and maintain stability with the correct profile selected.
Actual performance gains depend on the ASIC miner model, chip quality, hash board condition, power supply, and operating conditions. In some cases, the hashrate increase can reach 30% or more, but the optimal result is always determined based on stability, temperature, and power consumption.
Examples of Performance Increases.
The examples below show the estimated performance gains when using Vnish.
|
Antminer Model |
Factory Firmware |
Possible Hashrate with VNISH |
|
S19 Pro |
110 TH/s |
143 TH/s |
|
S19 XP |
141 TH/s |
184 TH/s |
|
S19k Pro |
120 TH/s |
156 TH/s |
|
S21 |
200 TH/s |
260 TH/s |
|
S21 Pro |
234 TH/s |
304 TH/s |
|
S21 XP |
270 TH/s |
351 TH/s |
|
S21 Hyd. |
335 TH/s |
435.5 TH/s |
|
T19 |
84 TH/s |
109 TH/s |
|
T21 |
190 TH/s |
247 TH/s |
|
L7 |
9500 MH/s |
12350 MH/s |
|
L9 |
17000 MH/s |
22100 MH/s |
Performance improvements are achieved through auto-tuning of individual chips.
Vnish allows you to select ASIC miner operating profiles with different power and hashrate levels. Users can configure the device not only for maximum performance but also for a more energy-efficient mode if they want to reduce electricity costs and reduce the load on their equipment. More details
Actual consumption may differ slightly from the profile values, as it depends on the miner's operating conditions, temperature, power supply, and hash board status.
Advantages:
Lower electricity costs. Economy profiles help reduce power consumption, which is especially important when electricity costs are high.
Best hashrate-to-power ratio. Vnish helps you select the mode that makes your ASIC miner operate more efficiently and use energy more effectively.
Less heat generated by the hardware. Reducing power reduces the thermal load on the chips, hash boards, and power supply, helping to maintain more stable miner operation.
Stable operation over long distances. A properly selected profile reduces unnecessary load on the device and helps the miner operate more smoothly without frequent overloads and sudden temperature fluctuations.
Easy mode selection for the task. The user can choose a more productive profile for maximum hashrate or a more economical profile to reduce energy costs.
AutoTune in VNISH Firmware is an automatic ASIC miner configuration that selects the optimal frequency and voltage combination for each chip. The algorithm analyzes the chips' performance and selects the parameters that will maximize the miner's performance and stability. More details
AutoTune in VNISH Firmware analyzes the performance of each chip individually and checks how well it performs calculations at different frequency and voltage settings. During mining, the chip constantly cycles through specific values to find the correct result, and the system determines which parameters are best based on the number of successful calculations.
Process duration.
The process typically takes between 2 and 6 hours. Tuning time may vary depending on the ASIC miner model, the state of the hash boards, the selected mode, and the overall quality of the chips.
When to rerun.
Under normal conditions, AutoTune does not need to be rerun after each reboot or change to the miner's settings. After the process is complete, VNISH Firmware saves the selected parameters, and the miner continues to operate with the configured profile.
Re-running AutoTune may be necessary after installing a new firmware version if the autotuning algorithm has been changed. In this case, it is recommended to re-tune all used profiles to ensure the miner operates at the current settings and takes advantage of the improvements in the new version.
VNISH automatically selects the voltage and frequency for each ASIC chip.
The cooling section in VNISH helps monitor the miner's temperature and control its fans. This is essential for the stable operation of the ASIC device, as overheating chips can lead to reduced performance, errors, or automatic shutdown of mining to protect the hardware. More details
The firmware allows you to monitor the cooling system, view fan speeds, their current load, and operating status. This allows you to quickly spot cooling issues and customize the miner's operation.
Chip and Hashboard Temperature Monitoring
VNISH displays chip temperatures and helps maintain a preset temperature. The user can specify a target temperature, and the system will automatically adjust cooling to keep the miner within a safe operating range.
This monitoring is especially important under increased load, using performance profiles, or operating the equipment in rooms with unstable temperatures. If the temperature begins to rise, the firmware can change the operating mode to reduce the risk of overheating.
Fan Speed Control.
Vnish offers several fan control modes. In automatic mode, the firmware automatically adjusts fan speed based on chip temperature. This is the most convenient and safe option for most users.
A manual mode is also available, where fan speed is set to a fixed percentage. A separate mode can be used for immersion cooling, in which the fans are disabled and temperature control is based on liquid temperature.
The firmware also allows you to set the minimum number of fans and limit their speed range. This helps adapt the cooling system to the specific miner configuration.
Automatic Profile Reduction.
VNISH Firmware can automatically change the miner's operating profile based on chip temperature, power consumption, and device stability. If the temperature becomes too high, the system can lower the profile to reduce the load on the hardware.
This helps maintain stable miner operation without constant manual monitoring. The user can set the temperature at which the profile will be reduced, as well as a minimum profile below which the system will not drop.
Overheat Protection.
The cooling system in VNISH helps protect the ASIC miner from overheating and related problems. Incorrect fan operation, a lack of RPM, or an error status may indicate that the cooling system is not functioning properly.
When overheating, the miner can reduce performance, switch to a safer profile, or stop mining to protect the hardware. This approach helps reduce the risk of chip damage and maintain stable operation of the ASIC miner over a long period of time.
The Vnish interface allows you to conveniently monitor the ASIC miner's status through visual widgets and key device performance indicators. With remote access configured, the user can control the miner not only locally but also remotely. More details
Display:
Hashrate. The hashrate widget displays the miner's current speed and helps you quickly understand how reliably the device is performing calculations. You can monitor the instantaneous, current, and theoretical hashrate to evaluate the effectiveness of the selected profile.
Temperature. The temperature widget displays the temperature of chips and boards, and also shows the range from minimum to maximum. This helps you quickly detect overheating, check the quality of cooling, and assess the load on the hardware.
Fan Speed. In the cooling section, you can monitor the fan speed, their load, and current status. This allows you to quickly determine whether the coolers are working correctly and whether the cooling system can handle the selected mining mode.
HW Errors. The error widget displays the percentage and number of incorrect calculations that the pool does not accept as useful results. This metric helps identify issues with settings, hash boards, overclocking, or miner stability.
Voltage. In the Vnish interface, you can monitor the voltage parameters used in the selected operating profile. This is important for assessing stability, tuning performance, and selecting the most suitable mode for a specific ASIC miner.
Power Consumption. The consumption metric helps estimate how much electricity the miner uses during operation. This data is useful for cost control, assessing energy efficiency, planning power grid loads, and choosing the optimal mining profile.
AutoTune in VNISH Firmware is an automatic ASIC miner tuning feature that selects the optimal frequency and voltage combination for each chip. The firmware analyzes the hardware and helps you select a mode that delivers a good hashrate, stable operation, and more efficient power consumption. This is a convenient tool for optimizing your ASIC miner without manually adjusting parameters.
Automatic profile switching in Vnish Firmware allows the miner to automatically change its operating mode based on chip temperature, power consumption, and hardware stability. If conditions allow, the firmware can increase the profile to increase the hashrate, and reduce the load if the temperature rises or the operation becomes unstable. This helps maintain stable mining without constant manual monitoring.
The Power Limit feature limits the miner's maximum power consumption. This is useful when you need to keep the device within the available power of your power supply or electrical infrastructure. This control helps reduce the risk of overload and makes ASIC miner operation more predictable.
Vnish Firmware provides additional tools for monitoring ASIC miner stability. Users can configure the critical chip temperature, power limit, maximum number of reboots, and minimum number of working circuits. These parameters help protect the equipment from overheating, instability, and excessive load.
In the advanced settings, you can set a delay before starting mining and limit the number of consecutive reboots. This is useful for preventing endless restart loops when the hardware is unstable. This control helps the miner launch more smoothly and simplifies problem diagnostics.
The firmware can automatically adjust chip voltage based on temperature. This helps maintain a stable hashrate and reduce unnecessary load on overheating areas. This feature is especially useful when changing miner operating conditions or using performance profiles.
If one of the hashboards is unstable or fails, Vnish allows you to disable the problematic board and continue mining on the remaining working boards. This prevents the device from shutting down completely and temporarily keeps the miner running while the faulty hashboard is being diagnosed or repaired. The hashrate will be lower, but the equipment will continue to mine instead of being completely idle.
Download and install the special software to install our firmware "HASHCORE TOOLKIT". More details
Download the VNISH firmware installation file for your miner model. You can do this at the top of this page or on the page "Firmware".
Use the "HASHCORE TOOLKIT" program to install the firmware on your miner. More details
Step-by-step guide for safely updating your device
for Antminer S19 XP (hydro)
