Is using a custom ASIC firmware from BiXBiT free?

Our software for Antminer, Whatsminer is distributed for free. Please keep in mind that custom firmware includes Developers Fee, which is a reward for developers. Usually it is 1.8%-2.8% of the miner’s total hashrate which is automatically deducted during the work of the device.

Why the ASIC does not start after selecting a profile?

If you mean the very first run after flashing the device, it sometimes takes up to an hour for the inbuilt algorithm to finish configuring your ASIC.

How to bypass the “Cannot Find Signature” message during the flashing process of the ASIC?

Read our user manual for your specific miner version, it describes actions to eliminate this error, when it occurs.

Does the ASIC lose its warranty from the manufacturer when used with a custom firmware?

There is no definite answer. To avoid warranty issues, please use the firmware from the manufacturer.

Is it risky to use the custom firmware for ASIC from BiXBiT?

Absolutely not. All firmware revisions are thoroughly tested before each release. Moreover, all BiXBiT capacities have been running on these firmwares for many years.

Is BiXBiT AMS compatible with microprograms from other developers?

No. Our automated monitoring system is only compatible with our software.

Is it possible to revert the ASIC back to its original settings after using a custom firmware?

Yes, just bring back the official firmware in the usual way.

What level of knowledge is required to flash a miner?

We have specially made instructions for every version of the miner. Everything is described in a simple and clear way, so even a beginner can handle it. Besides, you are always backed with our team of technicians who are always in touch and willing to help.

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5. GENERAL RECOMMENDATIONS FOR OVERCLOCKING AND VOLTAGE LEVELS ON AN ADDITIONAL POWER SUPPLY

As a starting point you can use the preset profiles ① and voltage values ② for the additional power supply, which can be found in the tab Configuration > CGMiner configuration > Overclock

If no profiles exist and no recommended values are available, refer to the stock voltages and frequencies.

For this, turn on the unmodified miner and wait for it to enter the operating mode (usually 20-40 minutes). Use the original factory firmware or the BiXBiT firmware with Normal profile. Then check the status page in the miner's web interface.

In further computation we need ① (V_normal), ② (F_normal).
The value 1.412 in this example means a voltage of 14.12 volts.

Leave the miner running, measure the voltage on the hash boards.
Denote the measured voltage as Vmain

Vmain = 13,83 В

The values are calculated using the common formulas for overclocking (where Percent is the percentage of frequency increase, it approximately reflects the percentage of miner overclocking):

Target Frequency = F_normal * (Percent + 100) / 100;
Target Voltage = V_normal * (Percent / 5.0 + 100) / 100;
Minimum Voltage = Target Voltage - 50
Maximum Voltage = Target Voltage + 50

In case the parameters are out of the allowable limits, put the nearest possible value.
In case of power supply errors due to overcurrent, reduce the Maximum Voltage.

PSU Power Limit = 3900
3900 is a general value when overclocking with an additional power supply. But in some cases it may differ, depending on the specifics of the miner and its power supply.

PSU Power Max = PSU power limit +200

Denote the voltage on the additional power supply as Vpsu_add

On the initial setup of the additional PSU:

Vpsu_add = Vmain * (Percent / 5 + 100) / 100

During the subsequent tuning, Vpsu_add is set under load and equal to the voltage of the main power supply Vmain. That is, the measurement and adjustment must be carried out after the miner has entered the operating mode, keeping the power on.

For efficient miner overclocking, the hash board frequencies that are set by the miner after the autotune is complete, and the voltages of the additional and main PSU should be as similar as possible

The example of overclocking you can see in section 6.

The computed values must be set in the Overclock tab. Make sure the Advanced Options checkbox is ticked.

The general algorithm for overclocking is as follows:

Actions to be taken for the initial setup:

Check the Miner readings running in stock and note the voltage of the main PSU at that moment.
Do the calculation according to the formulas.
Install the BiXBiT firmware and connect the additional power supply

The following steps should be repeated until the necessary result is reached:

Set the new values on the Overclock tab
Set the voltage of the additional power supply according to the Vpsu_add calculated voltage
Turn on the miner and wait for the miner to enter the operating mode.
Measure the voltage of the main power supply Vmain. V_main is measured at points ① and ②.

Keeping the miner running - adjust the voltage of the additional power supply to the voltage of the main power supply.
Restart the miner.
In case the frequency on the board with the additional PSU turns out to be significantly lower (more than 50) than on the boards powered by the main PSU, it is necessary to additionally increase the voltage Vpsu_add
If the frequency and hashrate on the board with the additional PSU appears to be significantly higher - you can further increase the Target Voltage / Target Frequency in the overclocking settings.
If errors occur - the voltage and frequency values must be reduced