Frequently Asked Questions
ePIC Dashboard (Fleet Management Tool)
We recommend using our fleet management tool, ePIC Dashboard. You can download it from ePIC GitHub
If you have a static IP, and can’t access your miner, restarting your router may assign a new IP address.
To locate your miner’s new IP, use the scan feature in the ePIC Dashboard
Another way to resolve this issue is to re-flash the SD card and update the image or a power cycle.
Yes, you can use multiple IP ranges and save a list of miner’s for quick recovery during future sessions.
You can efficiently manage miner pools and sub-accounts by using the filtering function in conjunction with IP ranges.
There is currently no function that allows you to set all your miners to static IPs at once.
You will need to manually access each miner’s IP address, disable DHCP, and set a static IP individually.
UMC (Universal Mining Control)
No, but you can always use an API and endpoint to your source server or use the API tab on Webdash to see all the available API commands to test them out. You can also ssh to your miner to get the logs.
Only Antminer- and BlockMiner- compatible UMCs are supported by Foreman.
Please contact us at support@epicblockchain.io for more information
Setting up your UMC is simple! Follow the detailed step-by-step instructions in our User Guide to ensure proper installation and configuration.
You can update the firmware directly using Webdash or, for multiple rigs ePIC Dashboard. For detailed instructions, please refer to the User Guide under Settings > System
The extent to which you can overclock your miner depends on external factors such as your cooling mechanism and the upper limit of your power supply. We highly encourage users to experiment, as environmental conditions can vary significantly.
Try re-flashing of the UMC by downloading the SD recovery image or a power cycle. Please note that the IP report button is enabled on UMC 4.3.1 and above. This button is also supported by Foreman and ePIC Dashboard.
For instructions on using Foreman, please refer to this video tutorial
We recommend re-flashing of the UMC by downloading the SD recovery image of the latest firmware from ePIC Github
The performance of the UMC board depends on having an adequate cooling system. Ensure that the operating temperature does not exceed 40°C. You may also want to use our Voltage Optimizer to enhance performance and stability.
Please check your miner’s operating temperature.
If you are using the Voltage Optimizer or Board Tune feature and the miner is close to the shutdown temperature, survival mode might be activated. We recommend using the 1-hour or 24-hour hashrate reading on Webdash, as the 15-minute reading may not be stable.
The channels are arranged to provide maximum flexibility and compatibility across different miners, as some miners utilize different communication protocols.
Webdash (Web UI)
This error indicates that all hashboards are not working. However, check the connections and try running Voltage Optimizer, as it can adjust the throttle up and down based on temperature.
No, if you try to change the voltage and frequency while the Perpetual Tune is running, the software will overwrite the changed values and continue to auto-tune. We recommend not touching the Tune while the Perpetual Tune is on.
Yes, but there are conditions to consider. Since voltage changes based on temperature, being too aggressive with AutoFan could create a forcing function, causing the voltage to constantly optimize. The feature is available, but you’ll need to fine-tune it according to your needs and environment.
Yes, you can view chip performance at the bottom of the dashboard.
The default password is letmein. You can change it under Settings > System > Change Password > Apply.
Voltage Optimizer | ChipTune | Board Tune | |
Adjusting Variable | Voltage | Individual chip clocks | Board clocks |
Duration | < 30min | < 60min | < 45min |
Board Tune is a hybrid of Voltage Optimizer and ChipTune. It adjusts the board clock by changing the frequency of individual chips on the best-performing hashboards, optimizing for better efficiency and performance in stable environments
This feature was created on firmware v0.48.0 and up to improve hashboard performance on S21 series. |
ChipTune targets a -10 TH setting and adjusts the chip clock by changing the frequency of individual chips to achieve the best performance at a specific voltage. Once optimized, the frequency is locked to maintain performance.
Voltage Optimizer adjusts the chip clock by changing the frequency on all chips to find the best efficiency at a certain voltage. The voltage is then continuously adjusted to maintain the performance, especially in unstable environments. This feature was created on v.0.48.0 and up to improve hashboard performance on S21 series
Power consumption on Webdash is estimated due to the lack of current feedback from certain models of Antminer PSUs. For the S19 series, we recommend reading the power directly from the meter for the most accurate results. Accurate power readings for the APW17 (S21 and S21 Pro) are available on v0.51.5 and later.
If you experience a crash or performance issues, adjust your settings and then click “Restart Mining.” This will reset the chips to the last successfully applied settings, and you will retain access to Webdash.
The color indicators on Webdash represent chip performance ranges:
- Green: 97% or higher
- Yellow/Orange: Between 95% and 97%
- Red: Below 95%
Therefore, red chips are not necessarily indicative of a machine’s health unless the machine is overheatin
First, check whether the network connection and the mining pool are functioning correctly. If configured incorrectly, clear and re-add your pool address by going to Mining Config > Clear Fields > Copy and paste your pool address, then fill in your pool username under Worker Name.
The Unique ID is useful when managing hundreds of miners. It helps identify your miner by its IP address, MAC address, or CPU ID under the Worker Name on the dashboard.
General Questions
A blinking green light often indicates a network issue. Try connecting the machine to a known working Ethernet cable or use a different cable to see if the issue persists. If it does, consider plugging to another board.
No, the ePIC Firmware is exclusively designed to work on the ePIC UMC Board.
Yes, you can remove the PSU fans as long as the PSU does not overheat.
Firmware v0.49.2 and below don’t have a feature to set power levels directly, as predicting input power without current feedback from the Power Supply was challenging. However, we’ve developed a “Power Estimator” algorithm that uses Voltage, Clock, and Temperature as variables to estimate input power.
No, UMC can run without a fan spoofer
Firmware for Whatsminer is available up to v0.26.0. We are actively working to enhance its whatsminer performance and functionality for the next firmware release. Please stay tuned!
New firmware releases are scheduled for the middle of every month for Antminers.
Yes, you can manage your deployment en masse using the ePIC Dashboard. The installation package and user guide can be found on ePIC Supoport
Additionally, we provide API documentation to facilitate smooth integration if you
already have an existing management tool.
Yes, hashrate split is available from v0.100.3
Yes, the xnsub flag is available on v0.53.3 and above.
We have built-in features for overheat protection, such as survival mode, to maximize the miner’s uptime in hot environments. Our firmware automatically throttles down when the miner is approaching shutdown temperature. If the miner reaches this temperature, it will shut down the power to protect the chips and cool down before ramping up to the throttled target.
Unfortunately, It’s not ePIC support at this point
Our firmware allows you to set voltage and frequency manually. However, using the Perpetual Tune feature will automatically calculate the best frequency and voltage to reach your target hashrate with optimal efficiency.
Check all connections and consider rolling back to an older firmware version to see if the issue persists. If the ambient temperature is above 40°C, the PSU might shut down, leading to communication loss with the chip.
The miner’s uptime should increase when hashrate decreases, reducing heat production. However, if the miner reaches shutdown temperature, it will shut down to protect the chips and cool down before ramping up to the throttled target hashrate.
No, a power cord is NOT included with the miner. You will need to provide one that meets the requirements of the country where the product will be used.
Yes, you can. The optimizer will try to stay within 1% of the target hashrate, but you have the option to make more advanced adjustments.
Unfortunately, BTC Tool is NOT supported. However, the API is documented, and large miners can use the API documentation to integrate with their own management tools. Check our API Documentation.
The current firmware monitors temperature every 3 seconds. Once the temperature approaches the shutdown limit, the next ramp-up will throttle the target hashrate by the user-specified step.
We have a function called “Idle On Connection Lost” and it is enabled by default.
Blinking green and red: Calibrating
Blinking green: Booting
Solid green: Mining
Solid green and red: Defective Hashboard(s)
Try reconnecting the fan, check the number of fans detected and “Minimum Working Fans Required” under FANS. Also, try replacing the fans to working ones. If the issue persists after replacing the fan, the control board may be damaged.
Some of the Bitmain chips are unique and ePIC have discovered a pattern on Antminers with BM1366 ASIC chips that outperforms stock when overclocking.
It means the miner will be stopped and be put in an idle state until an internet connection is re-established. Disabling this feature means that the miner will continue to draw power.
We encourage cautious overclocking. Each chip and system has its own unique sweet spot, which can vary from one miner to another. While our system allows you to overclock, optimal performance is not guaranteed.
The default password is letmein.
We charge a one-time flat fee for both the UMC Board and the Firmware. Firmware updates are provided without any additional fees.
These chips are present in the following models: S19J, S19J Pro, S19J Pro+, S19 XP, S19K Pro.
BlockMiner
Absolutely! The Model 520i is designed to operate in both air and immersion environments. You can choose the operating environment based on your needs.
The switch on the PSU is used to turn off the PSU fans. This feature is particularly useful for users who are preparing the miner for immersion, allowing them to avoid disassembling the PSU and removing the fans.
“Immersion-ready” refers to several enhancements made to the Model 520i, including:
- A 5kW PSU providing headroom for overclocking.
- The ability to maintain overclocking even after fan removal in immersion.
- Minimal stickers on the PSU to reduce the risk of debris blocking the tank.
- Filtered graphite thermal pads to minimize the risk of being washed away in immersion.
The Model 520i has two C19 plugs. Please note that power cables are NOT included with the miner.
SC200
Yes, our PSU can operate in Normal Mode with both 110V and 220V. However, please note that all miners are defaulted to “Efficiency Mode.” To change the mining mode:
- Open your ePIC Dashboard.
- Select “Table” from the menu on the left-hand side.
- Select the miner you wish to change.
- Under “OPERATING MODE,” choose the desired mode from the drop-down menu.
- Enter your password and click “APPLY.”
- You are all set!
Firmware updates are essential for optimal performance. There are two ways to update your firmware:
- Update through ePIC Dashboard (recommended):
- Download the latest firmware version.
- Select the rig(s) you want to update by clicking the checkboxes in the table.
- On the ePIC Dashboard, click “Firmware” at the bottom of the menu bar.
- Click “Browse” in the “Firmware file” section and upload the downloaded file.
- Check “Maintain config over update” (otherwise, the miner will revert to the default manufacturer wallet).
- Enter your password and click “Apply.”
- Your firmware will be updated.
- Update by flashing the SD card:
- If necessary, flash the SD card with the new firmware.
- SD card files and instructions can be found here: SD Card Documentation.
If your miner is not discoverable by the dashboard, follow these troubleshooting steps:
- Ensure your miner is powered on.
- Check if the lights on the front of the rig are solid green. Flickering red and green lights indicate calibration.
- Verify that your internet connection is working.
- If the lights are solid green, check if your rig is mining to your wallet.
- Ensure the dashboard and miner are on the same subnet (same switch/router, etc.). If not, the ePIC dashboard may not detect it automatically.
If your miner is underperforming:
- Verify if your miner is set to Efficiency Mode. In this mode, the expected hashrate is 1.8 TH/s ±10%.
- If the hashrate is still lower than expected, check if your firmware is updated to the latest version
Update your firmware and dashboard to the latest version.
If the issue persists, remove the SD card and reflash it.
All SD cards now come preflashed. If your SD card needs to be reflashed, more details can be found here: SD Card Documentation.