Stability and Security

Using high-performance modes increases the load on hardware components. To ensure long-term reliability, the following conditions are critical:

• Quality Power Supply: The PSU must have sufficient headroom to operate in overclocked modes.
• Optimal Cooling: Exceeding temperature limits leads to chip degradation; the firmware helps regulate temperature via automatic presets and fan control.
• HW Error Monitoring: Continuous monitoring of hardware errors allows timely detection of chip overload and reduction of its frequency to a stable level.
• Balance: In most cases, it is recommended to choose a profile with a slight power margin — this ensures stable hash rate without frequent reboots.

The firmware includes a set of tools to protect the miner from external threats and unauthorized access:

• Antivirus Module: Built-in firewall and virus scanner provide protection against common malware, such as AntBuild and Night Switcher.
• SSH Management: Ability to change default passwords, ports, or completely disable SSH access to prevent brute-force attacks.
• Access Control: Centralized management of access rights and log monitoring allows timely detection of intrusion attempts.

Note: Despite the built-in protection, using only official builds from verified sources is mandatory to eliminate the risk of hidden fees or “backdoors.”

The official position of hardware manufacturers (particularly Bitmain) is as follows:

• Warranty Void: Installing any third-party software, including Vnish, technically constitutes grounds for voiding the factory warranty.
• No Trace: Vnish developers state that the firmware does not leave traces in the system when properly reverted to stock firmware, which theoretically may help preserve the warranty.
• Recommendation: Documentation should indicate the high likelihood of warranty voiding when using custom firmware, so users are aware of all risks.